I'm trying to prove that 7 is quadratic residue module 29 using Euler's and Gauss's lemmas. The demonstration with Euler's was immediate (since $7^{14} \equiv 1 \pmod {29} $), But I don't know how to start building the polynomial used in the gauss lemma. Is there a second form of the gauss lemma?
2026-03-29 20:49:41.1774817381
Demonstrating quadratic residues through three different lemmas
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