# Erdős 809

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:809
- Collection: Erdős
- Page: https://qed.bot/s/erdos-809
- Formal record: unclassified; at its source: open
- Machine-checked: no independent check has verified it
- Fidelity F2: The correspondence is declared through an alignment table and written divergences.
- Source: https://www.erdosproblems.com/809

## AI claims

No AI contribution is recorded against this statement.

## 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.

- Plasma AI, using GPT-6 Astra, Claude Fable 5.1: a full proof claimed, 27 Sep 2026. Autonomy A?, evidence V0. https://www.erdosproblems.com/forum/thread/809/proof-claims#proof-claim-367
- Asad Shahab, using GPT-6 Astra (OpenAI), Claude Opus 5.5 (Anthropic), Aristotle (Harmonic): a full proof claimed, 27 Sep 2026. Autonomy A?, evidence V0. https://www.erdosproblems.com/forum/thread/809/proof-claims#proof-claim-358

Cite as: qed.bot, "Erdős 809", https://qed.bot/s/erdos-809, as of 30 Sep 2026. The register's data is published under CC BY 4.0: https://creativecommons.org/licenses/by/4.0/