Innocent-looking problems involving whole numbers can stymie even the most astute mathematicians. As in the case of Fermats last theorem, centuries of effort may go into proving such tantalizing, ...

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Innocent-looking problems involving whole numbers can stymie even the most astute mathematicians. As in the case of Fermat’s last theorem, centuries of effort may go into proving such tantalizing, ...

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When the mathematicians Jeff Kahn and Gil Kalai first posed their “expectation threshold” conjecture in 2006, they didn’t believe it themselves. Their claim — a broad assertion about mathematical ...