Theorem mul_ne_one'

Modification history

2024-10-14 13:31
Mathlib/Algebra/Group/Units/Basic.lean
chore(Algebra.Group.Units): split into `Defs` and `Basic` file (#17724) …
Modified mul_ne_one'View on Github →
2024-08-19 07:42
Mathlib/Algebra/Group/Units.lean
feat: generalise `mul_eq_one` etc. to cancellative monoids (#15921) …
Added mul_ne_one'View on Github →