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Erdős problem 71

Is it true that for every infinite arithmetic progression PP which contains even numbers there is some constant c=c(P)c=c(P) such that every graph with average degree at least cc contains a cycle whose length is in PP?

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  • Formalization

    Erdős AI contributions wiki · 24 May, 2026

    Machine
    Aristotle, Claude Opus 4.7, GPT-5.5
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