Theorem isUnit_of_mul_isUnit_right

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_isUnit_rightView on Github →
2022-11-23 04:05
Mathlib/Algebra/Group/Units.lean
feat: port Algebra.Group.Units (#549) …
Added isUnit_of_mul_isUnit_rightView on Github →