Reciprocals of Partition Polynomials

Evan Chen, Ken Ono, Jujian Zhang

AxiomProver generated Lean proofs of Ballantine–Beck–Feigon–Maurischat Conjectures 2, 5, 7, 8, 9 and the intended corrected reading of 10, covering coprimality, divisibility, special values and a recurrence. It also found an n=4 counterexample to a printed binary log-concavity claim.

Sources for this record

What was already known

The authors of the original subsum-polynomial program posed ten conjectures and proved several reductions. The six statements here remained open.

AI involvement AI-centered

AxiomProver produced the Lean statements and proofs from supplied conjectures without human script repairs. Chen, Ono and Zhang reconstructed the prose arguments and distinguished the corrected statements.

The model produced complete proofs for open supplied conjectures and found a counterexample, while the conjectures, earlier reductions and human exposition came from mathematicians.

Importance Notable

Resolves six named conjectures and identifies a needed correction to another printed claim.

Limitations

Conjectures 5 and 7 are equivalent. The n>5 version of binary log-concavity remains open. The repository reports Lean 4.28.0 proofs and statement-comparator mappings; their match to the intended corrected statements is not independently established.

Technical verification Formal (Lean 4.28.0 with mathlib and comparator)

The six final claims have reported machine-checkable Lean 4.28.0 proofs and statement-comparator artifacts. The final files were not rebuilt here; careful reading of an earlier prose draft is not counted as complete human checking.

Formal checking

AxiomProver-generated Lean proofs and comparator mappings to supplied statements

Checker
Lean 4 kernel and comparator artifacts in AxiomMath/PartitionPolynomial
Scope
Conjectures 2, 5, 7, 8, 9 and corrected 10 as formalized for the paper
Basis
Reported by the linked checker
Evidence source

Checking a formal statement does not establish that it matches the original problem.

Human understanding Full

The authors give human explanations of the cyclotomic noncancellation, partition specializations and ternary recurrence in Sections 3–6.

Correction and publication history

2026-10-18 · publication

Resolves six named conjectures and identifies a needed correction to another printed claim.

Read this published revision