Theorem Equiv.Perm.ne_and_ne_of_swap_mul_apply_ne_self

Modification history

2023-01-17 10:45
Mathlib/GroupTheory/Perm/Support.lean
feat: port GroupTheory.Perm.Support (#1614)
Added Equiv.Perm.ne_and_ne_of_swap_mul_apply_ne_selfView on Github →