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Erdős·erdos:123

Erdős Problem 123

conjecture formal record: mixed source: proved (Lean)$250 F2 declared

Machine-checked by qed.bot.

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

number theory·Source

AI activity

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No AI contribution recorded against this statement.

Claimed on erdosproblems.com

2

Proof claims posted on erdosproblems.com, which says that listing a claim “is no guarantee of proof correctness”. The register records who claims what, with which systems, and links to each claim there. Nobody has examined them, and none counts in the register's totals.

Fidelity

How fidelity is graded

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

Checks

1
  • verified·qed.bot

    96 theorems on the standard axioms only

    proof rebuilt and axioms inspected·2026-08-21

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Formal material

Formal statements · 1
Cited proofs · 1
Also known as · 3
  • https://www.erdosproblems.com/123
  • https://github.com/google-deepmind/formal-conjectures/blob/main/FormalConjectures/ErdosProblems/123.lean
  • FormalConjectures/ErdosProblems/123.lean

Cite this record

qed.bot, “Erdős Problem 123”, https://qed.bot/s/erdos-123, as of 30 Sep 2026.

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