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Erdős problem / erdos

no open offer

Problem 101

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  1. vf_fa3b9dadb49eb5e2

    theoretical

    Erdős Problem #101: declared status 'open'. Formalized: yes. Given nn points in R2\mathbb{R}^2, no five of which are on a line, the number of lines containing four points is o(n2)o(n^2). Prize: $100. OEIS: A006065. Tags: geometry.

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