Mathlib v3 is deprecated. Go to Mathlib v4

Theorem self_ne_mul_left

Modification history

2023-04-28 17:05
src/algebra/group/basic.lean
feat(algebra/group/basic): `a * b ≠ b ↔ a ≠ 1` (#18635) …
Added self_ne_mul_leftView on Github →