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Theorem int.mul_eq_neg_one_iff_eq_one_or_neg_one

Modification history

2022-11-13 23:50
src/data/int/basic.lean
refactor(data/int/basic): move material about units to new file (#17508)
Modified int.mul_eq_neg_one_iff_eq_one_or_neg_oneView on Github →
2022-11-13 17:27
src/data/int/basic.lean
feat(data/int/basic): add lemmas for w*z = -1 (#17478) …
Added int.mul_eq_neg_one_iff_eq_one_or_neg_oneView on Github →