Email Gateway (Aug 17 2022 at 13:46): Email Gateway (Aug 17 2022 at 13:46):From: kuecuek@rbg.informatik.tu-darmstadt.de
hallo
is there any proof or definition about the square roots?
i want to show
If p is an odd prime and a is a Quadratishe residue mod p (EX x. [x^² = a]
(mod p)) then a has exactly two square roots modulo p.
i have found some definition about the Quadres in Numbertheory/residues but
there isn't any lemma about square roots there.
thanks
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