Complete Walk Qualification, Simple Paths, Step Lengths and Repetition Boundaries

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This question bank has corresponding bilingual step-by-step derivations. Source candidate and English ai_candidate states are retained. AI review, finite computation and Lean formal proof are labelled separately.

batch-20261014-advance-20261027-r07-graph-walk-simple-path-foundations · 2026-10-14 · 100 questions

This English edition is an AI candidate and does not yet have an OCME Atlas (GPT-6) Twin closure receipt.

1. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 1, 0, 1, 1]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([0, 1, 0, 1, 1], [[3, 1, 1]], No)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([0, 1, 0, 1, 1], [[3, 1, 1]], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

2. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([2, 1, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([2, 1, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

3. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([3, 1, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([3, 1, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

4. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([4, 1, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([4, 1, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

5. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([5, 1, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([5, 1, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

6. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 2, 0, 1, 1]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([0, 2, 0, 1, 1], [[3, 1, 1]], No)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([0, 2, 0, 1, 1], [[3, 1, 1]], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

7. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([1, 2, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([1, 2, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

8. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([3, 2, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([3, 2, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

9. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([4, 2, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([4, 2, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

10. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([5, 2, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([5, 2, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

11. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 3, 0, 1, 1]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([0, 3, 0, 1, 1], [[3, 1, 1]], No)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([0, 3, 0, 1, 1], [[3, 1, 1]], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

12. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([1, 3, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([1, 3, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

13. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([2, 3, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([2, 3, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

14. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([4, 3, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([4, 3, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

15. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([5, 3, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([5, 3, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

16. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 4, 0, 1, 1]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([0, 4, 0, 1, 1], [[3, 1, 1]], No)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([0, 4, 0, 1, 1], [[3, 1, 1]], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

17. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([1, 4, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([1, 4, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

18. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([2, 4, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([2, 4, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

19. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([3, 4, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([3, 4, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

20. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([5, 4, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([5, 4, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

21. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 5, 0, 1, 1]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([0, 5, 0, 1, 1], [[3, 1, 1]], No)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([0, 5, 0, 1, 1], [[3, 1, 1]], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

22. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([1, 5, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([1, 5, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

23. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([2, 5, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([2, 5, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

24. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([3, 5, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([3, 5, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

25. Check Every Consecutive Step in a Vertex Sequence

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (vertices,all bad [zero-based step index,from,to] records,walk?).

View answer and explanation

([4, 5, 0, 1, 0], [], Yes)

Look up every consecutive unordered pair in the complete edge set. An immediate repeated vertex is a bad step because loops are forbidden. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is ([4, 5, 0, 1, 0], [], Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-qualification · candidate

26. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0, 1], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0, 1], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

27. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0, 1], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0, 1], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

28. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0, 1], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0, 1], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

29. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 1, 0, 1, 4]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [1, 4], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [1, 4], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

30. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0, 1], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0, 1], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

31. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

32. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 2, 0, 1, 1]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(No, [1], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (No, [1], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

33. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

34. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

35. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 2, 0, 1, 5]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [5], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [5], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

36. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

37. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0, 1], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0, 1], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

38. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 3, 0, 1, 2]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [2], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [2], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

39. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

40. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

41. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

42. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0, 1], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0, 1], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

43. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

44. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 4, 0, 1, 3]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [3], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [3], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

45. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

46. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

47. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 5, 0, 1, 1]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(No, [1], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (No, [1], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

48. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

49. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [0], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [0], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

50. A Walk Is Simple Only when Every Vertex Is Distinct

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 5, 0, 1, 4]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,sorted distinct repeated vertex labels,simple_path?).

View answer and explanation

(Yes, [4], No)

First check all adjacency obligations, then the no-repeated-vertex obligation. A list of distinct vertices with a missing edge is still not a simple path. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, [4], No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-simple-path-qualification · candidate

51. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 0, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 0, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

52. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 2, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 2, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

53. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 3, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 3, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

54. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 4, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 4, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

55. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 5, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 5, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

56. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 0, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 0, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

57. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 1, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 1, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

58. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 3, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 3, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

59. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 4, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 4, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

60. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 5, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 5, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

61. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 0, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 0, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

62. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 1, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 1, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

63. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 2, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 2, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

64. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 4, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 4, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

65. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 5, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 5, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

66. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 0, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 0, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

67. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 1, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 1, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

68. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 2, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 2, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

69. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 3, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 3, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

70. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 5, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 5, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

71. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 0, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 0, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

72. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 1, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 1, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

73. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 2, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 2, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

74. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 3, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 3, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

75. Separate Candidate Length and Endpoints from Walk Qualification

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,start,end,edge_length_equals_vertex_count_minus_one). Even for an invalid candidate retain the number of proposed steps and its two endpoints; its No flag means these do not certify a walk.

View answer and explanation

(Yes, 4, 4, 0, edge_length_equals_vertex_count_minus_one)

Subtract one from the length of the nonempty vertex list. A single listed vertex has zero steps and identical endpoints. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, 4, 0, edge_length_equals_vertex_count_minus_one).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-length-endpoints · candidate

76. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0, 1], [[0, 1]], No, No, Yes)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0, 1], [[0, 1]], No, No, Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

77. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0, 1], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0, 1], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

78. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0, 1], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0, 1], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

79. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0, 1], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0, 1], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

80. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 1, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0, 1], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0, 1], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

81. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 2], [0, 1]], No, No, Yes)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 2], [0, 1]], No, No, Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

82. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0, 1], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0, 1], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

83. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

84. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

85. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 2, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

86. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 3], [0, 1]], No, No, Yes)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 3], [0, 1]], No, No, Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

87. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0, 1], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0, 1], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

88. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

89. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

90. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 3, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

91. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 4], [0, 1]], No, No, Yes)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 4], [0, 1]], No, No, Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

92. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0, 1], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0, 1], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

93. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

94. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

95. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[5, 4, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

96. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[0, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 5], [0, 1]], No, No, Yes)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 5], [0, 1]], No, No, Yes).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

97. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[1, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0, 1], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0, 1], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

98. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[2, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

99. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[3, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

100. Distinguish Repeated Vertices, Repeated Edges and Closed Walks

Use the complete finite undirected loop-free simple graph on Fin(6)={0,…,5} with edge set=[[0, 1], [0, 2], [0, 3], [0, 4], [0, 5], [1, 2], [1, 3], [1, 4], [1, 5], [2, 3], [2, 4], [2, 5], [3, 4], [3, 5], [4, 5]] and nonempty ordered vertex sequence=[4, 5, 0, 1, 0]. A walk requires every consecutive pair to be adjacent. A simple path additionally forbids all repeated vertices. Edge length is the number of steps, not the number of listed vertices; a singleton vertex is a length-zero simple path. No directed-graph or general cycle theorem is claimed. Give (walk?,edge_length,sorted distinct repeated vertex labels,distinct repeated unordered edges in first-repeat encounter order,trail?,simple_path?,closed?). A trail here is a qualified walk without repeated undirected edges. closed requires a qualified positive-length walk with equal endpoints; it is not a simple-cycle certificate.

View answer and explanation

(Yes, 4, [0], [[0, 1]], No, No, No)

Normalize each step edge as an unordered pair before testing repetition. A closed trail can repeat its endpoint and therefore is not a simple path; a backtrack repeats an undirected edge. The length-zero singleton is a trail and simple path but is not closed under this positive-length convention. An exact finite or coordinate slice does not automatically establish a general infinite theorem. The exact result, retaining the requested order, is (Yes, 4, [0], [[0, 1]], No, No, No).

Reviewed step-by-step derivation

Graph walks and simple paths · qf-mod27-walk-repetition-classification · candidate

Canonical question JSONL · English JSONL · Validation report