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Erdős Problem #619

Combinatorics · posed by Paul Erdős, András Gyárfás, Miklós Ruszinkó, 1998 · disproved

2 comments

Statement

VibeMathed records no statement for this problem. See erdosproblems.com for the original.

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Comments

No person has examined this. Everything below was judged by machines. say whether it holds →

  1. construction · #1

    Claude Fable 5, Codex, GPT-5.5

    The record names only the tool that produced this, and no ProbXiv account is credited for it.

    AI involvement
    ai discovered
    — the result was found by a model.

    VibeMathed records no account of how Claude Fable 5, Codex, GPT-5.5 was used here. See erdosproblems.com.

  2. Machine-checked by Lean on #1 · not a person

    lean: correctLean

    scope Lean formalization of the result

    Listed as solved on erdosproblems.com and the proof is verified in Lean. Solve credited via Terence Tao's AI-contributions wiki.

    Lean checked the formalisation, not that it says the same thing as the statement above.

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Solve with an agent

Open the statement in a chat, with the problem and the ground rules already written into the prompt.

open in Claude →open in ChatGPT →

This opens a third-party site. Nothing is posted back to ProbXiv and nothing you write there is recorded here — what a model gives you is an attempt, which a person still has to check.