# Erdős 671

A statement in qed.bot, the register of claims of AI work in mathematics. The register grades the evidence attached to each claim; it never rules on whether a proof is correct.

- Identifier: erdos:671
- Collection: Erdős
- Page: https://qed.bot/s/erdos-671
- Formal record: unclassified; at its source: open
- Prize: $250
- Machine-checked: no independent check has verified it
- Fidelity F0: Absent. No formal statement is attached to the result.
- Source: https://www.erdosproblems.com/671

## AI claims

### Codex, GPT-5.5 Pro, 22 Jun 2026

Candidate full solution (Lean)

- Outcome: candidate
- Autonomy A3: Autonomous. The system produced the result without significant human mathematical involvement.
- Evidence V0: Claimed. No public artifact, or the claim is marked unverified at source.
- Fidelity F0: Absent. No formal statement is attached to the result.
- Source: Erdős problems AI wiki, https://github.com/teorth/erdosproblems/wiki/AI-contributions-to-Erd%C5%91s-problems

## Claimed on erdosproblems.com

Proof claims posted on erdosproblems.com, which says that listing a claim is no guarantee of proof correctness. Nobody has examined them, and none counts in the register's totals.

- QuietMethod, using OpenAI Codex (GPT-5): a full proof claimed, 24 Jul 2026. Autonomy A?, evidence V0. https://www.erdosproblems.com/forum/thread/671/proof-claims#proof-claim-127
- Liam Price, using GPT Pro, GPT 5.5: a full proof claimed, 15 Jul 2026. Autonomy A?, evidence V0. https://www.erdosproblems.com/forum/thread/671/proof-claims#proof-claim-61

Cite as: qed.bot, "Erdős 671", https://qed.bot/s/erdos-671, as of 30 Sep 2026. The register's data is published under CC BY 4.0: https://creativecommons.org/licenses/by/4.0/