Erdős·erdos:1090

Erdős Problem 1090

problem formal record: solved source: proved (Lean) F2 declared

No independent check recorded yet. A formal artifact, declaration or published object is attached, but no rebuild of it is recorded here.

Fidelity F2: The statement corpus cites this proof against its own statement.

geometry, ramsey theory·Source

AI activity

Aristotle, Gemini 3 Flash

27 Feb 2026

Proof found (Lean)

full A2 V2 F2

Reasoning and sources

AI building on literature supplied to it

literature: 🟢 Graham and Selfridge (unpublished, ~1975)

F2 declared. The statement corpus cites this proof against its own statement.

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Formal statements · 1

FormalConjectures/ErdosProblems/1090.lean
1 declarations, 1 unproved goals·research solved

Cited proofs · 1

Also known as · 3

https://www.erdosproblems.com/1090
https://github.com/google-deepmind/formal-conjectures/blob/main/FormalConjectures/ErdosProblems/1090.lean
FormalConjectures/ErdosProblems/1090.lean

qed.bot, “Erdős Problem 1090”, https://qed.bot/s/erdos-1090, as of 30 Sep 2026.

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