`ComparatorChallenges/StronglyRayleighDPP.lean`

Explanation legend Lean4 Domain Explanation Language (L4DEL)

L4DEL explanations are a separate layer. They do not change the Lean source. Intuition is explanatory prose; numbered items are a reading path; sources link the wording back to evidence.

L4DEL: Lean4 Domain Explanation Language

Annotation provenance. This overlay contains 120 curated AI-written annotations and 1273 mechanical source-derived annotations. They have not been human-reviewed as explanations; treat them as unverified and not mathematical authority. Retained generation history: The 9 original curated annotations were produced in a Claude Sonnet 5.5 session at medium effort; Claude Opus 5.5 is recorded in that session as the advisor model, not the direct author. Those 9 annotations were revised on 2026-10-14 to bind all of them to exact page-one quotations from 6 pinned OpenAI manuscripts, the matching pinned formalization notes, and named historical primary sources; no human review is claimed, and the exact runtime model identifier was not exposed to the artifact generator. The 3 manuscript-grounded matrix-multiplication annotations were composed from pinned OpenAI manuscripts and named historical sources in a Codex session on 2026-10-14; no human review is claimed, and the exact runtime model identifier was not exposed to the artifact generator. Six additional target-specific annotations for Catalan's constant, the irrationality exponent of pi, dyadic Erdos similarity, Unique Games, quintic Lienard systems, and Yau nodal growth were composed from pinned OpenAI manuscripts, exact page-one quotations, exact Lean statements, and named historical sources in a Codex session on 2026-10-14; no human review is claimed, and the exact runtime model identifier was not exposed to the artifact generator. Four additional target-specific annotations for Seymour's second-neighborhood conjecture, Cannon's conjecture, Koebe circle-domain uniformization, and circle-domain rigidity were composed from 4 pinned OpenAI manuscripts, exact page-one quotations, exact Lean statements, and named historical primary sources in a Codex session on 2026-10-14; no human review is claimed, and the exact runtime model identifier was not exposed to the artifact generator. Four additional target-specific annotations for simple Lebesgue spectrum on the three-torus, Rokhlin multiple mixing, the nine-dimensional Borsuk counterexample, and Tingley's sphere-isometry problem were composed from 4 pinned OpenAI manuscripts, exact page-one quotations, exact Lean statements, and named historical primary sources in a Codex session on 2026-10-14; no human review is claimed, and the exact runtime model identifier was not exposed to the artifact generator. Four additional target-specific annotations for the Abhyankar-Sathaye counterexample, the circulant Hadamard conjecture, the Eilenberg-Ganea counterexample, and short Egyptian fractions were composed from 4 pinned OpenAI manuscripts, exact page-one quotations, exact Lean statements, and quotations from Sathaye, Turyn with Storer, Eilenberg with Ganea, and Erdos in a Codex session on 2026-10-14; no human review is claimed, and the exact runtime model identifier was not exposed to the artifact generator. Four additional target-specific annotations for the complete Crouzeix inequality, unrestricted Euclidean five-coloring, the general Mahler conjecture, and Thompson F nonamenability were composed on 2026-10-14 from exact Lean statements, 4 pinned OpenAI manuscripts, the matching formalization notes, and linked historical sources by Crouzeix, de Grey, Mahler, Cannon, Floyd, and Parry; no human review is claimed. Four additional target-specific annotations for algorithmic strong thin trees, Barnette's Hamiltonian-cycle conjecture, the explicit Artin CAT(0) counterexample, and generalized amplitude-damping capacity were composed on 2026-10-14 from exact Lean statements, 4 pinned OpenAI manuscripts, matching formalization notes, and linked historical sources by Anari with Goddyn, Arts with Hopman and Timmermans, Charney, and Khatri with Sharma and Wilde; no human review is claimed. Fourteen solution-level annotations for Seymour's second-neighborhood theorem were added on 2026-10-14 from the pinned 15-page manuscript, covering the exact-neighborhood model, minimal-counterexample reduction, subset deficit, transitive blowup, pruning, extremal contradiction, and proof-bearing final theorem. The subset and blowup annotations also bind exact quotations from Tyler Seacrest (2019) and Brantner, Brockman, Kay, and Snively (2009); no human review is claimed. Thirty-seven declaration-level annotations were added on 2026-10-14 for the rest of ComparatorChallenges/AlgorithmicThinTrees.lean, covering its multigraph semantics, stack-machine cost model, explicit and binary-multiplicity encodings, output certificate, and complete algorithmic proposition. They are bound to the pinned OpenAI manuscript and linked earlier thin-tree sources by Luis Goddyn, Nima Anari, and Shayan Oveis Gharan; the annotation explicitly preserves that the concluding comparator theorem still has body by sorry, and no human review is claimed. Thirty-one supporting declarations in ComparatorChallenges/UniqueGamesTheorem.lean were upgraded or added on 2026-10-14, completing curated coverage of all thirty-two declarations in that file. The annotations cover the finite game model, Boolean formula and parser, binary-vector translations, explicit output serialization, finite-alphabet machine contract, and gap theorem; they distinguish manuscript-backed mathematics from Lean-specific canonical parsing and unary game output encoding, bind exact OpenAI manuscript quotations, and credit Subhash Khot through his 2010 survey. The comparator theorem remains explicitly labeled as having body by sorry; no human review is claimed. The source-derived generator was hardened on 2026-10-14 so a formalization note covering multiple comparator results no longer copies its combined Scope prose onto each declaration; those targets now use declaration-specific source comments when available and otherwise remain explicitly bounded to the exact Lean statement. The remaining source-derived annotations were generated mechanically from pinned formalization notes and source comments by tooling developed in a GPT-5.6 Sol session at ultra reasoning; GPT-5.6 Sol did not originate the source prose.

Credit: OpenAI's pinned repository says an unreleased internal model produced the manuscripts and supporting proof artifacts. The collection builds on the mathematics community's accumulated problems, results, language, and formal libraries; each manuscript's BibTeX and bibliography are the authority for individual scholarly credit.

Project sources: Pinned openai/math documentation, Pinned formalization catalogue

27 declarations, 6 contain sorry, 0 declared as axioms

abbrev OAI.Problem336AdditiveD139.UnitLabel line 15
Also declared: OAI/Probability/StrongRayleigh/Model.lean:15 (same declaration text).
def OAI.Problem336AdditiveD139.leftTranslate line 17
Also declared: OAI/Probability/StrongRayleigh/Model.lean:17 (same declaration text).
def OAI.Problem336AdditiveD139.iidUnitLabels line 20
Also declared: OAI/Probability/StrongRayleigh/Model.lean:20 (same declaration text).
def OAI.Problem336AdditiveD139.InvariantBinaryLaw line 23
Also declared: OAI/Probability/StrongRayleigh/Model.lean:23 (same declaration text).
def OAI.Problem336AdditiveD139.HasEquivariantIIDFactor line 29
Also declared: OAI/Probability/StrongRayleigh/Model.lean:29 (same declaration text).
def OAI.Problem336AdditiveD139.finiteGeneratingValue line 37
Also declared: OAI/Probability/StrongRayleigh/Model.lean:37 (same declaration text).
def OAI.Problem336AdditiveD139.StronglyRayleighFinite line 44
Also declared: OAI/Probability/StrongRayleigh/Model.lean:44 (same declaration text).
def OAI.Problem336AdditiveD139.marginalMass line 48
Also declared: OAI/Probability/StrongRayleigh/Model.lean:48 (same declaration text).
def OAI.Problem336AdditiveD139.marginalGeneratingValue line 52
Also declared: OAI/Probability/StrongRayleigh/Model.lean:52 (same declaration text).
def OAI.Problem336AdditiveD139.StronglyRayleighCountable line 59
Also declared: OAI/Probability/StrongRayleigh/Model.lean:59 (same declaration text).
def OAI.Problem336AdditiveD139.boolReal line 64
Also declared: OAI/Probability/StrongRayleigh/Model.lean:64 (same declaration text).
def OAI.Problem336AdditiveD139.tiltPartition line 66
Also declared: OAI/Probability/StrongRayleigh/Model.lean:66 (same declaration text).
def OAI.Problem336AdditiveD139.tiltMean line 73
Also declared: OAI/Probability/StrongRayleigh/Model.lean:73 (same declaration text).
def OAI.Problem336AdditiveD139.tiltSecondMoment line 81
Also declared: OAI/Probability/StrongRayleigh/Model.lean:81 (same declaration text).
def OAI.Problem336AdditiveD139.tiltCovariance line 90
Also declared: OAI/Probability/StrongRayleigh/Model.lean:90 (same declaration text).
def OAI.Problem336AdditiveD139.coordinatePerturb line 94
Also declared: OAI/Probability/StrongRayleigh/Model.lean:94 (same declaration text).
def OAI.Problem336AdditiveD139.PositiveContractionFinite line 98
Also declared: OAI/Probability/StrongRayleigh/Model.lean:98 (same declaration text).
def OAI.Problem336AdditiveD139.IsFiniteDeterminantalLaw line 106
Also declared: OAI/Probability/StrongRayleigh/Model.lean:106 (same declaration text).
def OAI.Problem336AdditiveD139.PositiveContractionKernel line 113
Also declared: OAI/Probability/StrongRayleigh/Model.lean:113 (same declaration text).
def OAI.Problem336AdditiveD139.IsDeterminantalLaw line 121
Also declared: OAI/Probability/StrongRayleigh/Model.lean:121 (same declaration text).
def OAI.Problem336AdditiveD139.TranslationInvariantKernel line 128
Also declared: OAI/Probability/StrongRayleigh/Model.lean:128 (same declaration text).
theorem OAI.Problem336AdditiveD139.finite_strongly_rayleigh_response Challenge statement: Strongly Rayleigh and determinantal-process IID factors sorry line 132
L4DEL explanation
This declaration is an exact comparator-selected statement. Read the Lean statement below for its mathematical content.
1. The linked formalization note covers 2 distinct comparator results, so its combined Scope prose is not copied onto this declaration.
2. The repository's comparator configuration selects OAI.Probability.StrongRayleigh.Main as the released solution module checked against this declaration.
Sources and attribution: Pinned Lean source (fd4aeeb2ee4f)
Distinct definitions of this name: OAI/Probability/StrongRayleigh/Main.lean:21 (same statement text; different proof or body). Qualify references as OAI.Problem336AdditiveD139.finite_strongly_rayleigh_response@path.
```
theorem finite_strongly_rayleigh_response :
    ∀ (F : Type u_1) [Fintype F] [Nonempty F] (μ : ProbabilityMeasure (F → Bool)),
      StronglyRayleighFinite μ →
        (∀ (i j : F) (h : F → ℝ),
          HasDerivAt (fun r : ℝ => tiltMean μ (coordinatePerturb h j r) i)
            (tiltCovariance μ h i j) 0) ∧
        (∀ (i : F) (h : F → ℝ),
          (∑ j : F, |tiltCovariance μ h i j|) ≤
              2 * tiltMean μ h i * (1 - tiltMean μ h i) ∧
            2 * tiltMean μ h i * (1 - tiltMean μ h i) ≤ (1 : ℝ) / 2) ∧
        (∀ (i : F) (h h' : F → ℝ) (D : ℝ),
          0 ≤ D → (∀ j : F, |h j - h' j| ≤ D) →
…
```
Mentions: OAI.Problem336AdditiveD139.StronglyRayleighFinite, OAI.Problem336AdditiveD139.tiltMean, OAI.Problem336AdditiveD139.coordinatePerturb, OAI.Problem336AdditiveD139.tiltCovariance
theorem OAI.Problem336AdditiveD139.strongly_rayleigh_group_factor Challenge statement: Strongly Rayleigh and determinantal-process IID factors sorry line 147
L4DEL explanation
This declaration is an exact comparator-selected statement. Read the Lean statement below for its mathematical content.
1. The linked formalization note covers 2 distinct comparator results, so its combined Scope prose is not copied onto this declaration.
2. The repository's comparator configuration selects OAI.Probability.StrongRayleigh.Main as the released solution module checked against this declaration.
Sources and attribution: Pinned Lean source (fd4aeeb2ee4f)
Distinct definitions of this name: OAI/Probability/StrongRayleigh/Main.lean:39 (same statement text; different proof or body). Qualify references as OAI.Problem336AdditiveD139.strongly_rayleigh_group_factor@path.
```
theorem strongly_rayleigh_group_factor :
    ∀ (Γ : Type u_2) [Group Γ] [Countable Γ] [MeasurableSpace Γ],
      ∀ μ : ProbabilityMeasure (Γ → Bool),
        StronglyRayleighCountable μ → InvariantBinaryLaw μ → HasEquivariantIIDFactor μ := by
…
```
Mentions: OAI.Problem336AdditiveD139.StronglyRayleighCountable, OAI.Problem336AdditiveD139.InvariantBinaryLaw, OAI.Problem336AdditiveD139.HasEquivariantIIDFactor
theorem OAI.Problem336AdditiveD139.finite_positive_contraction_dpp_is_strongly_rayleigh Challenge statement: Strongly Rayleigh and determinantal-process IID factors sorry line 153
L4DEL explanation
This declaration is an exact comparator-selected statement. Read the Lean statement below for its mathematical content.
1. The linked formalization note covers 2 distinct comparator results, so its combined Scope prose is not copied onto this declaration.
2. The repository's comparator configuration selects OAI.Probability.StrongRayleigh.Main as the released solution module checked against this declaration.
Sources and attribution: Pinned Lean source (fd4aeeb2ee4f)
Distinct definitions of this name: OAI/Probability/StrongRayleigh/Main.lean:48 (same statement text; different proof or body). Qualify references as OAI.Problem336AdditiveD139.finite_positive_contraction_dpp_is_strongly_rayleigh@path.
```
theorem finite_positive_contraction_dpp_is_strongly_rayleigh :
    ∀ (F : Type u_3) [Fintype F] [Nonempty F] (K : F → F → ℂ),
      PositiveContractionFinite K →
        (∃ μ : ProbabilityMeasure (F → Bool), IsFiniteDeterminantalLaw μ K) ∧
          ∀ μ : ProbabilityMeasure (F → Bool), IsFiniteDeterminantalLaw μ K →
            StronglyRayleighFinite μ := by
…
```
Mentions: OAI.Problem336AdditiveD139.PositiveContractionFinite, OAI.Problem336AdditiveD139.IsFiniteDeterminantalLaw, OAI.Problem336AdditiveD139.StronglyRayleighFinite
theorem OAI.Problem336AdditiveD139.countable_positive_contraction_dpp_exists_unique Challenge statement: Strongly Rayleigh and determinantal-process IID factors sorry line 161
L4DEL explanation
This declaration is an exact comparator-selected statement. Read the Lean statement below for its mathematical content.
1. The linked formalization note covers 2 distinct comparator results, so its combined Scope prose is not copied onto this declaration.
2. The repository's comparator configuration selects OAI.Probability.StrongRayleigh.Main as the released solution module checked against this declaration.
Sources and attribution: Pinned Lean source (fd4aeeb2ee4f)
Distinct definitions of this name: OAI/Probability/StrongRayleigh/Main.lean:57 (same statement text; different proof or body). Qualify references as OAI.Problem336AdditiveD139.countable_positive_contraction_dpp_exists_unique@path.
```
theorem countable_positive_contraction_dpp_exists_unique :
    ∀ (I : Type u_4) [Countable I] (K : I → I → ℂ),
      PositiveContractionKernel K →
        ∃! μ : ProbabilityMeasure (I → Bool), IsDeterminantalLaw μ K := by
…
```
Mentions: OAI.Problem336AdditiveD139.PositiveContractionKernel, OAI.Problem336AdditiveD139.IsDeterminantalLaw
theorem OAI.Problem336AdditiveD139.invariant_positive_contraction_dpp_factor Challenge statement: Strongly Rayleigh and determinantal-process IID factors sorry line 167
L4DEL explanation
This declaration is an exact comparator-selected statement. Read the Lean statement below for its mathematical content.
1. The linked formalization note covers 2 distinct comparator results, so its combined Scope prose is not copied onto this declaration.
2. The repository's comparator configuration selects OAI.Probability.StrongRayleigh.Main as the released solution module checked against this declaration.
Sources and attribution: Pinned Lean source (fd4aeeb2ee4f)
Distinct definitions of this name: OAI/Probability/StrongRayleigh/Main.lean:65 (same statement text; different proof or body). Qualify references as OAI.Problem336AdditiveD139.invariant_positive_contraction_dpp_factor@path.
```
theorem invariant_positive_contraction_dpp_factor :
    ∀ (Γ : Type u_5) [Group Γ] [Countable Γ] [MeasurableSpace Γ]
      (K : Γ → Γ → ℂ) (μ : ProbabilityMeasure (Γ → Bool)),
      PositiveContractionKernel K → IsDeterminantalLaw μ K →
        InvariantBinaryLaw μ → HasEquivariantIIDFactor μ := by
…
```
Mentions: OAI.Problem336AdditiveD139.PositiveContractionKernel, OAI.Problem336AdditiveD139.IsDeterminantalLaw, OAI.Problem336AdditiveD139.InvariantBinaryLaw, OAI.Problem336AdditiveD139.HasEquivariantIIDFactor
theorem OAI.Problem336AdditiveD139.translation_invariant_kernel_dpp_factor Challenge statement: Strongly Rayleigh and determinantal-process IID factors sorry line 174
L4DEL explanation
This declaration is an exact comparator-selected statement. Read the Lean statement below for its mathematical content.
1. The linked formalization note covers 2 distinct comparator results, so its combined Scope prose is not copied onto this declaration.
2. The repository's comparator configuration selects OAI.Probability.StrongRayleigh.Main as the released solution module checked against this declaration.
Sources and attribution: Pinned Lean source (fd4aeeb2ee4f)
Distinct definitions of this name: OAI/Probability/StrongRayleigh/Main.lean:75 (same statement text; different proof or body). Qualify references as OAI.Problem336AdditiveD139.translation_invariant_kernel_dpp_factor@path.
```
theorem translation_invariant_kernel_dpp_factor :
    ∀ (Γ : Type u_6) [Group Γ] [Countable Γ] [MeasurableSpace Γ] (K : Γ → Γ → ℂ),
      PositiveContractionKernel K → TranslationInvariantKernel K →
        ∃ μ : ProbabilityMeasure (Γ → Bool),
          IsDeterminantalLaw μ K ∧ InvariantBinaryLaw μ ∧ HasEquivariantIIDFactor μ := by
…
```
Mentions: OAI.Problem336AdditiveD139.PositiveContractionKernel, OAI.Problem336AdditiveD139.TranslationInvariantKernel, OAI.Problem336AdditiveD139.IsDeterminantalLaw, OAI.Problem336AdditiveD139.InvariantBinaryLaw, OAI.Problem336AdditiveD139.HasEquivariantIIDFactor