Source authenticated

Erdős Problem #1151

An elementary solution via a primitive-row decomposition of the Chebyshev-node measures; the main theorem is formalized in Lean, but erdosproblems.com still lists the problem open

Exact FrontierDelta

proved→proved

Scope and record

Occurred: Oct 29, 2026

Delta type: REGISTRY REVISION

Assumptions: VibeMathed verification: lean-verified. Publication: announcement. AI contribution: ai-co-developed. VibeMathed editorial classifications, scores, notes, relations, and dataset structure are CC BY 4.0. Source statements and linked content retain their own rights.

Canonical aliases: Erdős Problem #1151 · Erdős #1151 · Problem 1151

Confidence: Not scored

Registry verification: lean verified · announcement · candidate

Open the source record ↗

Attribution

VibeMathed
registry · event recorded by

GPT-5.5 Pro
model · ai model contributor · OpenAI

Codex
model · ai model contributor · OpenAI

Przemysław Chojecki
human · human collaborator

Allen Hart
human · human collaborator

Artifacts and verifiers

Lean formalization of Theorem 1.1(a)

lean artifact · passed

Artifact ↗

Compute record

No linked compute attempts recorded.

Lineage and corrections

Corrects Erdős Problem #1151 →

Supersedes Erdős Problem #1151 →

This event attributed to Przemysław Chojecki

Erdős Problem #1151 evidence for this event

Erdős Problem #1151 parent of this event

Write-up evidence for this event

VibeMathed record: Erdős Problem #1151 evidence for this event

This event attributed to Codex

This event attributed to GPT-5.5 Pro

This event attributed to Allen Hart

An elementary solution via a primitive-row decomposition of the Chebyshev-node measures; the main theorem is formalized in Lean, but erdosproblems.com still lists the problem open parent of this event

Lean formalization of Theorem 1.1(a) evidence for this event

Act on this frontier

Verify, challenge, or extend the result.