Proper Palettes, Exact Chromatic Minima and Independent Certificate Flags

This batch has passed Schema, deduplication, source-snapshot, and independent-answer recomputation checks; it is still not marked as human-reviewed.

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-20261106-r01-chromatic-number-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.

Field order uses a source-bound presentation supplement; canonical JSONL and mathematical answers are unchanged.

Field-order and source-binding data

1. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 1, 0, 1], [0, 1], 2, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

2. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 1, 2] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 2, 0, 1, 2], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

3. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 1, 0, 1], [0, 1], 2, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

4. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 2, 1, 0, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

5. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 2, 0, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

6. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 1, 2] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 2, 0, 1, 2], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

7. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 2, 0, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

8. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 3, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

([0, 1, 2, 3, 0, 1], [0, 1, 2, 3], 4, Yes, proper_coloring_only)

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 2, 3, 0, 1], [0, 1, 2, 3], 4, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

9. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 1, 0, 1], [0, 1], 2, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

10. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 2, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 2, 0, 2, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

11. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 1, 0, 1], [0, 1], 2, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

12. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 2, 1, 0, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

13. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 2, 0, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

14. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 2, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 2, 0, 2, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

15. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 2, 0, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

16. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 3, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

([0, 1, 2, 3, 0, 1], [0, 1, 2, 3], 4, Yes, proper_coloring_only)

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 2, 3, 0, 1], [0, 1, 2, 3], 4, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

17. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 1, 0, 1], [0, 1], 2, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

18. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 2, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 2, 0, 2, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

19. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 1, 0, 1], [0, 1], 2, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

20. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 2, 1, 0, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

21. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 2, 0, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

22. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 2, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 2, 0, 2, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

23. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 2, 0, 1], [0, 1, 2], 3, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

24. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 3, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

([0, 1, 2, 3, 0, 1], [0, 1, 2, 3], 4, Yes, proper_coloring_only)

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 2, 3, 0, 1], [0, 1, 2, 3], 4, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

25. Proper Coloring Alone Does Not Prove the Chromatic Minimum

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 4], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Give (colors, used_colors, color_count, proper, boundary).

View answer and explanation

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

Report the original color array, increasingly ordered used labels, their count and all-edge properness. A valid coloring supplies an upper bound, not automatically equality with the chromatic number. The exact result, retaining the requested order, is ([0, 1, 0, 1, 0, 1], [0, 1], 2, Yes, proper_coloring_only).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-proper-audit · candidate

26. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=3. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(3, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (3, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

27. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 1, 2] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

28. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=3. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(3, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (3, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

29. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

30. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

31. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 1, 2] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

32. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

33. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 3, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=5. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(5, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (5, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

34. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=3. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(3, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (3, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

35. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 2, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

36. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=3. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(3, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (3, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

37. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

38. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

39. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 2, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

40. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

41. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 3, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=5. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(5, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (5, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

42. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=3. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(3, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (3, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

43. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 2, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

44. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=3. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(3, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (3, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

45. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

46. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

47. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 2, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

48. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=4. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(4, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (4, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

49. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 3, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=5. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(5, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (5, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

50. A Supplied k-Palette Is a Candidate Upper Certificate

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 4], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Requested palette size k=3. Give (k, proper, palette_within_k, candidate_upper_bound_certificate, boundary).

View answer and explanation

(3, Yes, Yes, Yes, chi_at_most_k_not_equality)

Check properness and that every label lies below k separately. Their conjunction certifies this supplied palette. A failed candidate does not prove that no other k-coloring exists. The exact result, retaining the requested order, is (3, Yes, Yes, Yes, chi_at_most_k_not_equality).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-upper-bound · candidate

51. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (2, [0, 1, 0, 1, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

52. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 2, 0, 1, 2], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

53. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (2, [0, 1, 0, 1, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

54. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 2, 1, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

55. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 0, 2, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

56. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 2, 0, 1, 2], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

57. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 0, 2, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

58. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

(4, [0, 1, 2, 3, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates)

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (4, [0, 1, 2, 3, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

59. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (2, [0, 1, 0, 1, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

60. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 2, 0, 2, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

61. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (2, [0, 1, 0, 1, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

62. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 2, 1, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

63. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 0, 2, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

64. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 2, 0, 2, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

65. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 0, 2, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

66. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

(4, [0, 1, 2, 3, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates)

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (4, [0, 1, 2, 3, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

67. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (2, [0, 1, 0, 1, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

68. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 2, 0, 2, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

69. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (2, [0, 1, 0, 1, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

70. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 2, 1, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

71. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 0, 2, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

72. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 2, 0, 2, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

73. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (3, [0, 1, 0, 2, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

74. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

(4, [0, 1, 2, 3, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates)

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (4, [0, 1, 2, 3, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

75. Exact Chromatic Number Needs Both Lower and Upper Evidence

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 4], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Give (chromatic_number, canonical_coloring, lower_bound_exhausted, certificate).

View answer and explanation

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

Search increasing k completely, retaining the first lexicographic vertex-order coloring found with colors tried increasingly. A lower palette is exhausted and the displayed proper coloring supplies the upper certificate. The empty carrier has chromatic number0; a nonempty edgeless graph has number1. The exact result, retaining the requested order, is (2, [0, 1, 0, 1, 0, 1], Yes, exhaustive_lower_and_constructive_upper_certificates).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-exact-number · candidate

76. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=3. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

77. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 1, 2] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

78. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=3. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

79. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

80. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

81. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 1, 2] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

82. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

83. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 3, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=5. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(5, Yes, 4, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (5, Yes, 4, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

84. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=3. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

85. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 2, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

86. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=3. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

87. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

88. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

89. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 2, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

90. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

91. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 3], [1, 4], [2, 3], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 3, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=5. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(5, Yes, 4, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (5, Yes, 4, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

92. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=3. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

93. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 2, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

94. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=3. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

95. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

96. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

97. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 0, 2, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

98. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 2, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=4. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (4, Yes, 3, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

99. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 2], [0, 3], [0, 5], [1, 2], [1, 3], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 2, 3, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=5. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(5, Yes, 4, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (5, Yes, 4, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

100. Equality of k with the Minimum Is Not Validity of This Coloring

Use the complete finite loop-free simple undirected graph on Fin(6)={0,…,5} with canonical edges=[[0, 1], [0, 5], [1, 2], [1, 4], [2, 3], [2, 5], [3, 4], [4, 5]]. All graph vertices and edges are supplied, and exact searches are limited to n≤9. Supplied colors=[0, 1, 0, 1, 0, 1] in vertex order. Color labels are nonnegative integer palette indices; retain their actual labels. Properness checks every edge, and using palette [0,k) is separate from merely using at most k distinct labels. Compare k=3. Give (k, candidate_k_palette_valid, chromatic_number, k_equals_chromatic_number, boundary).

k_equals_chromatic_number compares k with the true chromatic number; it does not certify the supplied coloring. Check candidate_k_palette_valid separately.

View answer and explanation

(3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof)

Keep the supplied palette validity flag separate from the exhaustive chromatic number and the comparison k=chi. The comparison may be Yes even when the supplied coloring fails. A greedy or arbitrary valid palette alone is not a lower-bound certificate. The exact result, retaining the requested order, is (3, Yes, 2, No, k_colorable_means_at_most_k_and_greedy_not_optimality_proof).

Reviewed step-by-step derivation

Chromatic number · qf-mod37-chromatic-minimum-boundary · candidate

Canonical question JSONL · English JSONL · Validation report