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Erdős·erdos:205

Erdős Problem 205

conjecture formal record: mixed source: disproved (Lean)no 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.

number theory·Source

AI activity

How grades work
Aristotle, GPT-5.2 Thinking

2026-01-10

Full solution (Lean)

full A3 autonomous V2 artifact F2 declared
Reasoning and sources

Autonomy

AI standalone; human involvement recorded as non-significant

Does the formal statement say what was claimed?

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

Computed from what the project declares and what the register holds, never from reading the mathematics. How fidelity is graded.

Follow and discuss

All discussion

Discussion and bounties for this problem load here.

Formal material

Formal statements · 1
Cited proofs · 1

Recorded elsewhere

Compare the registries
  • vibemathed — Erdős Problem #205

    checked·machine-led·their labels: lean-verified, ai-discovered

Also known as · 3
  • https://www.erdosproblems.com/205
  • https://github.com/google-deepmind/formal-conjectures/blob/main/FormalConjectures/ErdosProblems/205.lean
  • FormalConjectures/ErdosProblems/205.lean