Theorem IsUnit.of_mul_eq_one

Modification history

2025-12-12 12:04
Mathlib/Algebra/Group/Units/Defs.lean
feat(Algebra): define Dedekind-finite monoids (every left inverse is also a right inverse) (#32610) …
Modified IsUnit.of_mul_eq_oneView on Github →
2025-11-12 10:34
Mathlib/Algebra/Group/Units/Defs.lean
chore: rename `isUnit_of_mul_eq_one` to `IsUnit.of_mul_eq_one` (#31283) …
Added IsUnit.of_mul_eq_oneView on Github →