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Theorem
int.mul_eq_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_one_iff_eq_one_or_neg_one
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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_one_iff_eq_one_or_neg_one
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