# Erdős Problem 550

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:550
- Collection: Erdős
- Page: https://qed.bot/s/erdos-550
- Formal record: solved; at its source: open (Lean)
- Machine-checked: no independent check has verified it
- Fidelity F2: The statement corpus cites this proof against its own statement.
- Source: https://www.erdosproblems.com/550

## AI claims

### GPT, 22 Jun 2026

Candidate full solution

- 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 F2: Declared. The authors record how the formal statement corresponds to the claim — a comparator challenge, an alignment table or written divergences — or a statement corpus cites the proof against its own statement.
- 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.

- Eric Li, using GPT-5.5 Pro: a full proof claimed, 17 Jul 2026. Autonomy A?, evidence V0. https://www.erdosproblems.com/forum/thread/550/proof-claims#proof-claim-74

## Formal statements

- FormalConjectures/ErdosProblems/550.lean, https://github.com/google-deepmind/formal-conjectures/blob/main/FormalConjectures/ErdosProblems/550.lean

Cite as: qed.bot, "Erdős Problem 550", https://qed.bot/s/erdos-550, as of 30 Sep 2026. The register's data is published under CC BY 4.0: https://creativecommons.org/licenses/by/4.0/