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The Anstee-Sali Conjecture on Forbidden Configurations

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anstee-sali-conjectureCombinatoricsposed by Richard Anstee, Attila Sali, 2005recorded: disproved

1 attempt · no person has looked

Statement

For a forbidden configuration F, the Anstee-Sali conjecture predicts that forb(m, F) is Theta(m^(X(F)-1)), where X(F) comes from an explicit product construction. Disproved: the 4-uniform family on six vertices formed by a two-vertex core joined to the edges of a 4-cycle has X(F) = 4, so the conjecture predicts Theta(m^3), while a random-alteration argument gives Omega(m^(10/3)).

Context

The central conjecture of a named research programme with its own long-running dynamic survey, well known inside extremal set theory and invisible outside it.

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  • #1

    Attempt 1

    constructionGPT-5.6 Sol with Pei Wu ·
    AI involvement
    ai discovered
    the result was found by a model.
    models
    GPT-5.6 Sol
    people
    Pei Wu

    The abstract ends "The example was found by GPT-5.6 Sol", and a dedicated disclosure section repeats it: "The authors used GPT-5.6 Sol for finding the example. The authors reviewed and revised all outputs, verified results, and take full responsibility for the final manuscript."

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