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Question 786: Audit All Vertex Permutations and Retain Every Valid Order

On this page
  1. Original question and givens
  2. Definition and scope
  3. Step-by-step derivation
  4. Reverse checks
  5. Result
  6. This question review and source binding

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← Question derivation index · Original question batch

P1000-0786 · q-20261015-advance-20261116-r06-topological-ordering-dag-0036

Original question and givens

Use unique vertices=[v0, v1, v2, v3, v4, v5] and loop-free duplicate-free directed edges=[[v0, v1], [v0, v2], [v0, v4]]. Every edge u→v needs position(u)<position(v) in a complete vertex permutation; labels use source lexical order. Give (vertices, edges, all_valid_orders, order_count, order_exists, certificate).

  • G001 — Use unique vertices=[v0, v1, v2, v3, v4, v5] and loop-free duplicate-free directed edges=[[v0, v1], [v0, v2], [v0, v4]]. Every edge u→v needs position(u)<position(v) in a complete vertex permutation; labels use source lexical order. Give (vertices, edges, all_valid_orders, order_count, order_exists, certificate).

Definition and scope

For a finite digraph every valid order starts at a zero-indegree vertex; branching on that first vertex lists every order once.

Step-by-step derivation

S001 · implies

Before

V=[v0, v1, v2, v3, v4, v5]

After

all directed edges=[[v0, v1], [v0, v2], [v0, v4]]

Conditions: none

This is a fully specified finite digraph, not necessarily a complete digraph.

Step identifiers and dependencies

Rule: full_directed_graph · Uses: G001

S002 · implies

Before

no vertices remain

After

one empty completion; C(∅)=1

Conditions: none

The empty remaining problem has one completion: place no further vertex.

Step identifiers and dependencies

Rule: empty_order_base · Uses: G001, S001

S003 · calculation

Before

C(v5) := sum(1)

After

C(v5) = 1

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S002

S004 · implies

Before

remaining=[v5]; eligible first vertices=[v5]

After

complete continuations=1

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S003

S005 · calculation

Before

C(v4) := sum(1)

After

C(v4) = 1

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S004

S006 · implies

Before

remaining=[v4]; eligible first vertices=[v4]

After

complete continuations=1

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S005

S007 · calculation

Before

C(v4,v5) := sum(1, 1)

After

C(v4,v5) = 2

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S006

S008 · implies

Before

remaining=[v4, v5]; eligible first vertices=[v4, v5]

After

complete continuations=2

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S007

S009 · calculation

Before

C(v3) := sum(1)

After

C(v3) = 1

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S008

S010 · implies

Before

remaining=[v3]; eligible first vertices=[v3]

After

complete continuations=1

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S009

S011 · calculation

Before

C(v3,v5) := sum(1, 1)

After

C(v3,v5) = 2

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S010

S012 · implies

Before

remaining=[v3, v5]; eligible first vertices=[v3, v5]

After

complete continuations=2

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S011

S013 · calculation

Before

C(v3,v4) := sum(1, 1)

After

C(v3,v4) = 2

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S012

S014 · implies

Before

remaining=[v3, v4]; eligible first vertices=[v3, v4]

After

complete continuations=2

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S013

S015 · calculation

Before

C(v3,v4,v5) := sum(2, 2, 2)

After

C(v3,v4,v5) = 6

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S014

S016 · implies

Before

remaining=[v3, v4, v5]; eligible first vertices=[v3, v4, v5]

After

complete continuations=6

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S015

S017 · calculation

Before

C(v2) := sum(1)

After

C(v2) = 1

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S016

S018 · implies

Before

remaining=[v2]; eligible first vertices=[v2]

After

complete continuations=1

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S017

S019 · calculation

Before

C(v2,v5) := sum(1, 1)

After

C(v2,v5) = 2

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S018

S020 · implies

Before

remaining=[v2, v5]; eligible first vertices=[v2, v5]

After

complete continuations=2

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S019

S021 · calculation

Before

C(v2,v4) := sum(1, 1)

After

C(v2,v4) = 2

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S020

S022 · implies

Before

remaining=[v2, v4]; eligible first vertices=[v2, v4]

After

complete continuations=2

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S021

S023 · calculation

Before

C(v2,v4,v5) := sum(2, 2, 2)

After

C(v2,v4,v5) = 6

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S022

S024 · implies

Before

remaining=[v2, v4, v5]; eligible first vertices=[v2, v4, v5]

After

complete continuations=6

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S023

S025 · calculation

Before

C(v2,v3) := sum(1, 1)

After

C(v2,v3) = 2

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S024

S026 · implies

Before

remaining=[v2, v3]; eligible first vertices=[v2, v3]

After

complete continuations=2

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S025

S027 · calculation

Before

C(v2,v3,v5) := sum(2, 2, 2)

After

C(v2,v3,v5) = 6

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S026

S028 · implies

Before

remaining=[v2, v3, v5]; eligible first vertices=[v2, v3, v5]

After

complete continuations=6

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S027

S029 · calculation

Before

C(v2,v3,v4) := sum(2, 2, 2)

After

C(v2,v3,v4) = 6

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S028

S030 · implies

Before

remaining=[v2, v3, v4]; eligible first vertices=[v2, v3, v4]

After

complete continuations=6

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S029

S031 · calculation

Before

C(v2,v3,v4,v5) := sum(6, 6, 6, 6)

After

C(v2,v3,v4,v5) = 24

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S030

S032 · implies

Before

remaining=[v2, v3, v4, v5]; eligible first vertices=[v2, v3, v4, v5]

After

complete continuations=24

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S031

S033 · calculation

Before

C(v1) := sum(1)

After

C(v1) = 1

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S032

S034 · implies

Before

remaining=[v1]; eligible first vertices=[v1]

After

complete continuations=1

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S033

S035 · calculation

Before

C(v1,v5) := sum(1, 1)

After

C(v1,v5) = 2

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S034

S036 · implies

Before

remaining=[v1, v5]; eligible first vertices=[v1, v5]

After

complete continuations=2

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S035

S037 · calculation

Before

C(v1,v4) := sum(1, 1)

After

C(v1,v4) = 2

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S036

S038 · implies

Before

remaining=[v1, v4]; eligible first vertices=[v1, v4]

After

complete continuations=2

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S037

S039 · calculation

Before

C(v1,v4,v5) := sum(2, 2, 2)

After

C(v1,v4,v5) = 6

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S038

S040 · implies

Before

remaining=[v1, v4, v5]; eligible first vertices=[v1, v4, v5]

After

complete continuations=6

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S039

S041 · calculation

Before

C(v1,v3) := sum(1, 1)

After

C(v1,v3) = 2

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S040

S042 · implies

Before

remaining=[v1, v3]; eligible first vertices=[v1, v3]

After

complete continuations=2

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S041

S043 · calculation

Before

C(v1,v3,v5) := sum(2, 2, 2)

After

C(v1,v3,v5) = 6

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S042

S044 · implies

Before

remaining=[v1, v3, v5]; eligible first vertices=[v1, v3, v5]

After

complete continuations=6

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S043

S045 · calculation

Before

C(v1,v3,v4) := sum(2, 2, 2)

After

C(v1,v3,v4) = 6

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S044

S046 · implies

Before

remaining=[v1, v3, v4]; eligible first vertices=[v1, v3, v4]

After

complete continuations=6

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S045

S047 · calculation

Before

C(v1,v3,v4,v5) := sum(6, 6, 6, 6)

After

C(v1,v3,v4,v5) = 24

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S046

S048 · implies

Before

remaining=[v1, v3, v4, v5]; eligible first vertices=[v1, v3, v4, v5]

After

complete continuations=24

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S047

S049 · calculation

Before

C(v1,v2) := sum(1, 1)

After

C(v1,v2) = 2

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S048

S050 · implies

Before

remaining=[v1, v2]; eligible first vertices=[v1, v2]

After

complete continuations=2

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S049

S051 · calculation

Before

C(v1,v2,v5) := sum(2, 2, 2)

After

C(v1,v2,v5) = 6

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S050

S052 · implies

Before

remaining=[v1, v2, v5]; eligible first vertices=[v1, v2, v5]

After

complete continuations=6

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S051

S053 · calculation

Before

C(v1,v2,v4) := sum(2, 2, 2)

After

C(v1,v2,v4) = 6

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S052

S054 · implies

Before

remaining=[v1, v2, v4]; eligible first vertices=[v1, v2, v4]

After

complete continuations=6

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S053

S055 · calculation

Before

C(v1,v2,v4,v5) := sum(6, 6, 6, 6)

After

C(v1,v2,v4,v5) = 24

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S054

S056 · implies

Before

remaining=[v1, v2, v4, v5]; eligible first vertices=[v1, v2, v4, v5]

After

complete continuations=24

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S055

S057 · calculation

Before

C(v1,v2,v3) := sum(2, 2, 2)

After

C(v1,v2,v3) = 6

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S056

S058 · implies

Before

remaining=[v1, v2, v3]; eligible first vertices=[v1, v2, v3]

After

complete continuations=6

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S057

S059 · calculation

Before

C(v1,v2,v3,v5) := sum(6, 6, 6, 6)

After

C(v1,v2,v3,v5) = 24

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S058

S060 · implies

Before

remaining=[v1, v2, v3, v5]; eligible first vertices=[v1, v2, v3, v5]

After

complete continuations=24

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S059

S061 · calculation

Before

C(v1,v2,v3,v4) := sum(6, 6, 6, 6)

After

C(v1,v2,v3,v4) = 24

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S060

S062 · implies

Before

remaining=[v1, v2, v3, v4]; eligible first vertices=[v1, v2, v3, v4]

After

complete continuations=24

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S061

S063 · calculation

Before

C(v1,v2,v3,v4,v5) := sum(24, 24, 24, 24, 24)

After

C(v1,v2,v3,v4,v5) = 120

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S062

S064 · implies

Before

remaining=[v1, v2, v3, v4, v5]; eligible first vertices=[v1, v2, v3, v4, v5]

After

complete continuations=120

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S063

S065 · calculation

Before

C(v0,v1,v2,v4) := sum(6)

After

C(v0,v1,v2,v4) = 6

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S064

S066 · implies

Before

remaining=[v0, v1, v2, v4]; eligible first vertices=[v0]

After

complete continuations=6

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S065

S067 · calculation

Before

C(v0,v1,v2,v4,v5) := sum(24, 6)

After

C(v0,v1,v2,v4,v5) = 30

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S066

S068 · implies

Before

remaining=[v0, v1, v2, v4, v5]; eligible first vertices=[v0, v5]

After

complete continuations=30

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S067

S069 · calculation

Before

C(v0,v1,v2,v3,v4) := sum(24, 6)

After

C(v0,v1,v2,v3,v4) = 30

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S068

S070 · implies

Before

remaining=[v0, v1, v2, v3, v4]; eligible first vertices=[v0, v3]

After

complete continuations=30

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S069

S071 · calculation

Before

C(v0,v1,v2,v3,v4,v5) := sum(120, 30, 30)

After

C(v0,v1,v2,v3,v4,v5) = 180

Conditions: none

Each legal first vertex defines a disjoint branch; add the branch completion counts.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S070

S072 · implies

Before

remaining=[v0, v1, v2, v3, v4, v5]; eligible first vertices=[v0, v3, v5]

After

complete continuations=180

Conditions: none

The first vertex of every legal order has zero remaining indegree. Conversely any such source followed by a legal tail gives an order, so these branches are exhaustive.

Step identifiers and dependencies

Rule: all_source_branches · Uses: G001, S071

S073 · implies

Before

all root branches; count=180

After

enumeration contains each legal permutation exactly once

Conditions: none

Distinct first-vertex branches do not overlap and their recursive tails do not duplicate, so the answer retains every and only valid order.

Step identifiers and dependencies

Rule: enumeration_completeness · Uses: G001, S072

S074 · implies

Before

valid order count=180

After

at least one exists: Yes

Conditions: none

An existing valid order certifies acyclicity of this finite digraph; multiple valid orders are compatible.

Step identifiers and dependencies

Rule: order_existence · Uses: G001, S073

Reverse checks

  • S074 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S073 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S072 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S071 · premise_and_result_audit — Recompute C(v0,v1,v2,v3,v4,v5) with exact rational arithmetic, not rounded decimals.
  • S070 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S069 · premise_and_result_audit — Recompute C(v0,v1,v2,v3,v4) with exact rational arithmetic, not rounded decimals.
  • S068 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S067 · premise_and_result_audit — Recompute C(v0,v1,v2,v4,v5) with exact rational arithmetic, not rounded decimals.
  • S066 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S065 · premise_and_result_audit — Recompute C(v0,v1,v2,v4) with exact rational arithmetic, not rounded decimals.
  • S064 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S063 · premise_and_result_audit — Recompute C(v1,v2,v3,v4,v5) with exact rational arithmetic, not rounded decimals.
  • S062 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S061 · premise_and_result_audit — Recompute C(v1,v2,v3,v4) with exact rational arithmetic, not rounded decimals.
  • S060 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S059 · premise_and_result_audit — Recompute C(v1,v2,v3,v5) with exact rational arithmetic, not rounded decimals.
  • S058 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S057 · premise_and_result_audit — Recompute C(v1,v2,v3) with exact rational arithmetic, not rounded decimals.
  • S056 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S055 · premise_and_result_audit — Recompute C(v1,v2,v4,v5) with exact rational arithmetic, not rounded decimals.
  • S054 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S053 · premise_and_result_audit — Recompute C(v1,v2,v4) with exact rational arithmetic, not rounded decimals.
  • S052 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S051 · premise_and_result_audit — Recompute C(v1,v2,v5) with exact rational arithmetic, not rounded decimals.
  • S050 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S049 · premise_and_result_audit — Recompute C(v1,v2) with exact rational arithmetic, not rounded decimals.
  • S048 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S047 · premise_and_result_audit — Recompute C(v1,v3,v4,v5) with exact rational arithmetic, not rounded decimals.
  • S046 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S045 · premise_and_result_audit — Recompute C(v1,v3,v4) with exact rational arithmetic, not rounded decimals.
  • S044 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S043 · premise_and_result_audit — Recompute C(v1,v3,v5) with exact rational arithmetic, not rounded decimals.
  • S042 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S041 · premise_and_result_audit — Recompute C(v1,v3) with exact rational arithmetic, not rounded decimals.
  • S040 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S039 · premise_and_result_audit — Recompute C(v1,v4,v5) with exact rational arithmetic, not rounded decimals.
  • S038 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S037 · premise_and_result_audit — Recompute C(v1,v4) with exact rational arithmetic, not rounded decimals.
  • S036 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S035 · premise_and_result_audit — Recompute C(v1,v5) with exact rational arithmetic, not rounded decimals.
  • S034 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S033 · premise_and_result_audit — Recompute C(v1) with exact rational arithmetic, not rounded decimals.
  • S032 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S031 · premise_and_result_audit — Recompute C(v2,v3,v4,v5) with exact rational arithmetic, not rounded decimals.
  • S030 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S029 · premise_and_result_audit — Recompute C(v2,v3,v4) with exact rational arithmetic, not rounded decimals.
  • S028 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S027 · premise_and_result_audit — Recompute C(v2,v3,v5) with exact rational arithmetic, not rounded decimals.
  • S026 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S025 · premise_and_result_audit — Recompute C(v2,v3) with exact rational arithmetic, not rounded decimals.
  • S024 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S023 · premise_and_result_audit — Recompute C(v2,v4,v5) with exact rational arithmetic, not rounded decimals.
  • S022 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S021 · premise_and_result_audit — Recompute C(v2,v4) with exact rational arithmetic, not rounded decimals.
  • S020 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S019 · premise_and_result_audit — Recompute C(v2,v5) with exact rational arithmetic, not rounded decimals.
  • S018 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S017 · premise_and_result_audit — Recompute C(v2) with exact rational arithmetic, not rounded decimals.
  • S016 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S015 · premise_and_result_audit — Recompute C(v3,v4,v5) with exact rational arithmetic, not rounded decimals.
  • S014 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S013 · premise_and_result_audit — Recompute C(v3,v4) with exact rational arithmetic, not rounded decimals.
  • S012 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S011 · premise_and_result_audit — Recompute C(v3,v5) with exact rational arithmetic, not rounded decimals.
  • S010 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S009 · premise_and_result_audit — Recompute C(v3) with exact rational arithmetic, not rounded decimals.
  • S008 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S007 · premise_and_result_audit — Recompute C(v4,v5) with exact rational arithmetic, not rounded decimals.
  • S006 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S005 · premise_and_result_audit — Recompute C(v4) with exact rational arithmetic, not rounded decimals.
  • S004 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S003 · premise_and_result_audit — Recompute C(v5) with exact rational arithmetic, not rounded decimals.
  • S002 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.
  • S001 · premise_and_result_audit — Audit all vertices and edges; one failed order is not a cycle proof, and no legal branch may be omitted.

Result

([v0, v1, v2, v3, v4, v5], [[v0, v1], [v0, v2], [v0, v4]], [[v0, v1, v2, v3, v4, v5], [v0, v1, v2, v3, v5, v4], [v0, v1, v2, v4, v3, v5], [v0, v1, v2, v4, v5, v3], [v0, v1, v2, v5, v3, v4], [v0, v1, v2, v5, v4, v3], [v0, v1, v3, v2, v4, v5], [v0, v1, v3, v2, v5, v4], [v0, v1, v3, v4, v2, v5], [v0, v1, v3, v4, v5, v2], [v0, v1, v3, v5, v2, v4], [v0, v1, v3, v5, v4, v2], [v0, v1, v4, v2, v3, v5], [v0, v1, v4, v2, v5, v3], [v0, v1, v4, v3, v2, v5], [v0, v1, v4, v3, v5, v2], [v0, v1, v4, v5, v2, v3], [v0, v1, v4, v5, v3, v2], [v0, v1, v5, v2, v3, v4], [v0, v1, v5, v2, v4, v3], [v0, v1, v5, v3, v2, v4], [v0, v1, v5, v3, v4, v2], [v0, v1, v5, v4, v2, v3], [v0, v1, v5, v4, v3, v2], [v0, v2, v1, v3, v4, v5], [v0, v2, v1, v3, v5, v4], [v0, v2, v1, v4, v3, v5], [v0, v2, v1, v4, v5, v3], [v0, v2, v1, v5, v3, v4], [v0, v2, v1, v5, v4, v3], [v0, v2, v3, v1, v4, v5], [v0, v2, v3, v1, v5, v4], [v0, v2, v3, v4, v1, v5], [v0, v2, v3, v4, v5, v1], [v0, v2, v3, v5, v1, v4], [v0, v2, v3, v5, v4, v1], [v0, v2, v4, v1, v3, v5], [v0, v2, v4, v1, v5, v3], [v0, v2, v4, v3, v1, v5], [v0, v2, v4, v3, v5, v1], [v0, v2, v4, v5, v1, v3], [v0, v2, v4, v5, v3, v1], [v0, v2, v5, v1, v3, v4], [v0, v2, v5, v1, v4, v3], [v0, v2, v5, v3, v1, v4], [v0, v2, v5, v3, v4, v1], [v0, v2, v5, v4, v1, v3], [v0, v2, v5, v4, v3, v1], [v0, v3, v1, v2, v4, v5], [v0, v3, v1, v2, v5, v4], [v0, v3, v1, v4, v2, v5], [v0, v3, v1, v4, v5, v2], [v0, v3, v1, v5, v2, v4], [v0, v3, v1, v5, v4, v2], [v0, v3, v2, v1, v4, v5], [v0, v3, v2, v1, v5, v4], [v0, v3, v2, v4, v1, v5], [v0, v3, v2, v4, v5, v1], [v0, v3, v2, v5, v1, v4], [v0, v3, v2, v5, v4, v1], [v0, v3, v4, v1, v2, v5], [v0, v3, v4, v1, v5, v2], [v0, v3, v4, v2, v1, v5], [v0, v3, v4, v2, v5, v1], [v0, v3, v4, v5, v1, v2], [v0, v3, v4, v5, v2, v1], [v0, v3, v5, v1, v2, v4], [v0, v3, v5, v1, v4, v2], [v0, v3, v5, v2, v1, v4], [v0, v3, v5, v2, v4, v1], [v0, v3, v5, v4, v1, v2], [v0, v3, v5, v4, v2, v1], [v0, v4, v1, v2, v3, v5], [v0, v4, v1, v2, v5, v3], [v0, v4, v1, v3, v2, v5], [v0, v4, v1, v3, v5, v2], [v0, v4, v1, v5, v2, v3], [v0, v4, v1, v5, v3, v2], [v0, v4, v2, v1, v3, v5], [v0, v4, v2, v1, v5, v3], [v0, v4, v2, v3, v1, v5], [v0, v4, v2, v3, v5, v1], [v0, v4, v2, v5, v1, v3], [v0, v4, v2, v5, v3, v1], [v0, v4, v3, v1, v2, v5], [v0, v4, v3, v1, v5, v2], [v0, v4, v3, v2, v1, v5], [v0, v4, v3, v2, v5, v1], [v0, v4, v3, v5, v1, v2], [v0, v4, v3, v5, v2, v1], [v0, v4, v5, v1, v2, v3], [v0, v4, v5, v1, v3, v2], [v0, v4, v5, v2, v1, v3], [v0, v4, v5, v2, v3, v1], [v0, v4, v5, v3, v1, v2], [v0, v4, v5, v3, v2, v1], [v0, v5, v1, v2, v3, v4], [v0, v5, v1, v2, v4, v3], [v0, v5, v1, v3, v2, v4], [v0, v5, v1, v3, v4, v2], [v0, v5, v1, v4, v2, v3], [v0, v5, v1, v4, v3, v2], [v0, v5, v2, v1, v3, v4], [v0, v5, v2, v1, v4, v3], [v0, v5, v2, v3, v1, v4], [v0, v5, v2, v3, v4, v1], [v0, v5, v2, v4, v1, v3], [v0, v5, v2, v4, v3, v1], [v0, v5, v3, v1, v2, v4], [v0, v5, v3, v1, v4, v2], [v0, v5, v3, v2, v1, v4], [v0, v5, v3, v2, v4, v1], [v0, v5, v3, v4, v1, v2], [v0, v5, v3, v4, v2, v1], [v0, v5, v4, v1, v2, v3], [v0, v5, v4, v1, v3, v2], [v0, v5, v4, v2, v1, v3], [v0, v5, v4, v2, v3, v1], [v0, v5, v4, v3, v1, v2], [v0, v5, v4, v3, v2, v1], [v3, v0, v1, v2, v4, v5], [v3, v0, v1, v2, v5, v4], [v3, v0, v1, v4, v2, v5], [v3, v0, v1, v4, v5, v2], [v3, v0, v1, v5, v2, v4], [v3, v0, v1, v5, v4, v2], [v3, v0, v2, v1, v4, v5], [v3, v0, v2, v1, v5, v4], [v3, v0, v2, v4, v1, v5], [v3, v0, v2, v4, v5, v1], [v3, v0, v2, v5, v1, v4], [v3, v0, v2, v5, v4, v1], [v3, v0, v4, v1, v2, v5], [v3, v0, v4, v1, v5, v2], [v3, v0, v4, v2, v1, v5], [v3, v0, v4, v2, v5, v1], [v3, v0, v4, v5, v1, v2], [v3, v0, v4, v5, v2, v1], [v3, v0, v5, v1, v2, v4], [v3, v0, v5, v1, v4, v2], [v3, v0, v5, v2, v1, v4], [v3, v0, v5, v2, v4, v1], [v3, v0, v5, v4, v1, v2], [v3, v0, v5, v4, v2, v1], [v3, v5, v0, v1, v2, v4], [v3, v5, v0, v1, v4, v2], [v3, v5, v0, v2, v1, v4], [v3, v5, v0, v2, v4, v1], [v3, v5, v0, v4, v1, v2], [v3, v5, v0, v4, v2, v1], [v5, v0, v1, v2, v3, v4], [v5, v0, v1, v2, v4, v3], [v5, v0, v1, v3, v2, v4], [v5, v0, v1, v3, v4, v2], [v5, v0, v1, v4, v2, v3], [v5, v0, v1, v4, v3, v2], [v5, v0, v2, v1, v3, v4], [v5, v0, v2, v1, v4, v3], [v5, v0, v2, v3, v1, v4], [v5, v0, v2, v3, v4, v1], [v5, v0, v2, v4, v1, v3], [v5, v0, v2, v4, v3, v1], [v5, v0, v3, v1, v2, v4], [v5, v0, v3, v1, v4, v2], [v5, v0, v3, v2, v1, v4], [v5, v0, v3, v2, v4, v1], [v5, v0, v3, v4, v1, v2], [v5, v0, v3, v4, v2, v1], [v5, v0, v4, v1, v2, v3], [v5, v0, v4, v1, v3, v2], [v5, v0, v4, v2, v1, v3], [v5, v0, v4, v2, v3, v1], [v5, v0, v4, v3, v1, v2], [v5, v0, v4, v3, v2, v1], [v5, v3, v0, v1, v2, v4], [v5, v3, v0, v1, v4, v2], [v5, v3, v0, v2, v1, v4], [v5, v3, v0, v2, v4, v1], [v5, v3, v0, v4, v1, v2], [v5, v3, v0, v4, v2, v1]], 180, Yes, all_vertex_permutations_are_audited)

The full substitutions and premise audits recover the original answer, retaining its field order and verdict meanings.

This question review and source binding

Review date: 2026-10-26

Original questions, answers, step expressions, numeric ASTs and historical records are retained. Source candidate labels remain historical and are not overwritten as formal proof.

Source hashes and review receipts
  • input commit: 0f7be61e2c22317a4075561dc822c87d881a50db
  • original question SHA-256: ed2cff32a1c5bb47daf7c7f7e72ff93e40036dc8706a1f658e49df5258e0f7ff
  • candidate record SHA-256: c53c0abca1d1c35844aa42a90fefdf9995c2080290b0e76939a0a5168fe64e18
  • semantic review receipt SHA-256: 6c2c6d46aded7582a11ac41a8c0b3bdde2669a53bdb6e796eea2039994a02772
  • question-first witness SHA-256: 77e43898df9efdbf8094ad81fe4ab91cf4b4bd82f481eb9b4699b73cb4da612b
  • Lean: NOT_RUN · human review: NOT_PERFORMED
Same-source full JSON