Mathematics Atlas

How Proof Is Made
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Theorems, proofs and the people who found them

How Proof Is Made

Branches, theorems, concepts and the mathematicians who built them, each result traced to what it depends on and what depends on it in turn, down to the conjectures still waiting on a proof.

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Number theory

Does the Erdos-Straus equation 4/n = 1/x + 1/y + 1/z really have a positive-integer solution for every integer n of 2 or more?

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