Theorem Int.mul_eq_neg_one_iff_eq_one_or_neg_one

Modification history

2024-05-15 20:27
Mathlib/Algebra/Group/Int.lean
chore: Delete `Data.Nat.Units`, `Data.Int.Units` (#12835) …
Modified Int.mul_eq_neg_one_iff_eq_one_or_neg_oneView on Github →
2022-12-01 01:59
Mathlib/Data/Int/Units.lean
feat: port Data.Int.Units (#807) …
Added Int.mul_eq_neg_one_iff_eq_one_or_neg_oneView on Github →