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arXiv · 2111.02788

Yet another Proof of an old Hat

Roland Bacher
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Abstract

Every odd prime number p can be written in exactly (p + 1)/2 ways as a sum ab + cd with min(a, b) > max(c, d) of two ordered products. This gives a new proof Fermat's Theorem expressing primes of the form 1 + 4N as sums of two squares 1 .

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Roland Bacher. 2021-10-29. Yet another Proof of an old Hat. https://arxiv.org/abs/2111.02788

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