`ComparatorChallenges/HeckeSevenEighths.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

33 declarations, 1 contain sorry, 0 declared as axioms

theorem OAI.SevenEighths.ThetaProduct.rapid_product_sub line 11
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:12 (same declaration text).
def OAI.SevenEighths.ThetaProduct.product line 32
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:33 (same declaration text).
theorem OAI.SevenEighths.ThetaProduct.rapid_rescale line 53
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:54 (same declaration text).
def OAI.SevenEighths.ThetaProduct.rescale line 66
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:67 (same declaration text).
def OAI.SevenEighths.ThetaProduct.shiftedPair line 91
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:92 (same declaration text).
theorem OAI.SevenEighths.ThetaProduct.shiftedPair_k line 98
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:99 (same declaration text).
theorem OAI.SevenEighths.ThetaProduct.shiftedPair_f line 101
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:102 (same declaration text).
theorem OAI.SevenEighths.ThetaProduct.shiftedPair_differentiableAt line 105
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:106 (same declaration text).
def OAI.SevenEighths.ThetaProduct.scaledEvenPair line 111
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:112 (same declaration text).
theorem OAI.SevenEighths.ThetaProduct.scaledEvenPair_f_continuous line 116
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:117 (same declaration text).
theorem OAI.SevenEighths.ThetaProduct.scaledEvenPair_g_continuous line 122
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:123 (same declaration text).
def OAI.SevenEighths.ThetaProduct.rectangularPair line 128
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:129 (same declaration text).
theorem OAI.SevenEighths.ThetaProduct.rectangularPair_k line 134
Also declared: OAI/NumberTheory/DirichletL/ThetaProduct.lean:135 (same declaration text).
def OAI.SevenEighths.EisensteinTheta.xShift line 143
Also declared: OAI/NumberTheory/DirichletL/EisensteinTheta.lean:24 (same declaration text).
def OAI.SevenEighths.EisensteinTheta.yShift line 144
Also declared: OAI/NumberTheory/DirichletL/EisensteinTheta.lean:25 (same declaration text).
def OAI.SevenEighths.EisensteinTheta.parityPair line 146
Also declared: OAI/NumberTheory/DirichletL/EisensteinTheta.lean:39 (same declaration text).
theorem OAI.SevenEighths.HeckeTheta.locallyIntegrableOn_sum line 155
Also declared: OAI/NumberTheory/DirichletL/Hecke/Theta.lean:13 (same declaration text).
def OAI.SevenEighths.HeckeTheta.finitePair line 161
Also declared: OAI/NumberTheory/DirichletL/Hecke/Theta.lean:19 (same declaration text).
def OAI.SevenEighths.HeckeTheta.pair line 194
Also declared: OAI/NumberTheory/DirichletL/Hecke/Theta.lean:68 (same declaration text).
def OAI.SevenEighths.HeckeTheta.completed line 199
Also declared: OAI/NumberTheory/DirichletL/Hecke/Theta.lean:153 (same declaration text).
def OAI.SevenEighths.HeckeTheta.latticeL line 201
Also declared: OAI/NumberTheory/DirichletL/Hecke/Theta.lean:164 (same declaration text).
abbrev OAI.SevenEighths.HeckeFamily.K line 208
Also declared: OAI/NumberTheory/DirichletL/Hecke/Family.lean:13 (same declaration text).
abbrev OAI.SevenEighths.HeckeFamily.O line 209
Also declared: OAI/NumberTheory/DirichletL/Hecke/Family.lean:14 (same declaration text).
instance OAI.SevenEighths.HeckeFamily.(instance at line 211) line 211
def OAI.SevenEighths.HeckeFamily.omega line 213
Also declared: OAI/NumberTheory/DirichletL/Hecke/Family.lean:18 (same declaration text).
def OAI.SevenEighths.HeckeFamily.coordinateElement line 215
Also declared: OAI/NumberTheory/DirichletL/Hecke/Family.lean:20 (same declaration text).
structure OAI.SevenEighths.HeckeFamily.Character line 217
Also declared: OAI/NumberTheory/DirichletL/Hecke/Family.lean:22 (same declaration text).
instance OAI.SevenEighths.HeckeFamily.(instance at line 226) line 226
def OAI.SevenEighths.HeckeFamily.elementCoeff line 228
Also declared: OAI/NumberTheory/DirichletL/Hecke/Family.lean:48 (same declaration text).
def OAI.SevenEighths.HeckeFamily.coefficients line 230
Also declared: OAI/NumberTheory/DirichletL/Hecke/Family.lean:50 (same declaration text).
def OAI.SevenEighths.HeckeFamily.continuedLattice line 233
Also declared: OAI/NumberTheory/DirichletL/Hecke/Family.lean:91 (same declaration text).
def OAI.SevenEighths.HeckeFamily.LFunction line 235
Also declared: OAI/NumberTheory/DirichletL/Hecke/IdealBridge.lean:95 (same declaration text).
theorem OAI.SevenEighths.HeckeFamily.LFunction_ne_zero_of_seven_eighths_lt_re Challenge statement: Finite-order Hecke $L$-function $7/8$ bound sorry line 237
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 4 distinct comparator results, so its combined Scope prose is not copied onto this declaration.
2. The repository's comparator configuration selects OAI.NumberTheory.DirichletL.Hecke.Nonvanishing as the released solution module checked against this declaration.
Sources and attribution: Pinned Lean source (fd4aeeb2ee4f)
Distinct definitions of this name: OAI/NumberTheory/DirichletL/Hecke/Nonvanishing.lean:13 (same statement text; different proof or body). Qualify references as OAI.SevenEighths.HeckeFamily.LFunction_ne_zero_of_seven_eighths_lt_re@path.
```
theorem LFunction_ne_zero_of_seven_eighths_lt_re
    (χ : Character) {s : ℂ} (hs : (7 / 8 : ℝ) < s.re)
    (hpole : ¬ (χ.residue = 1 ∧ s = 1)) : LFunction χ s ≠ 0 := by sorry
…
```
Mentions: OAI.SevenEighths.HeckeFamily.Character, OAI.SevenEighths.HeckeFamily.LFunction