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The first proof of quadratic reciprocity I read in a book was using some figure, with several lines in it, and some lattice points. I did not really understand the argument and had the feeling that the proof might not be correct at all.

Later I saw proofs which were much clearer to me (for a discussion about proofs of quadratic reciprocity, see here: What's the "best" proof of quadratic reciprocity?What's the "best" proof of quadratic reciprocity?).

The first proof of quadratic reciprocity I read in a book was using some figure, with several lines in it, and some lattice points. I did not really understand the argument and had the feeling that the proof might not be correct at all.

Later I saw proofs which were much clearer to me (for a discussion about proofs of quadratic reciprocity, see here: What's the "best" proof of quadratic reciprocity?).

The first proof of quadratic reciprocity I read in a book was using some figure, with several lines in it, and some lattice points. I did not really understand the argument and had the feeling that the proof might not be correct at all.

Later I saw proofs which were much clearer to me (for a discussion about proofs of quadratic reciprocity, see here: What's the "best" proof of quadratic reciprocity?).

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Dietrich Burde
Dietrich Burde
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The first proof of quadratic reciprocity I read in a book was using some figure, with several lines in it, and some lattice points. I did not really understand the argument and had the feeling that the proof might not be correct at all.

Later I saw proofs which were much clearer to me (for a discussion about proofs of quadratic reciprocity, see here: What's the "best" proof of quadratic reciprocity?).