Def Subgroup.oppositeEquiv

Modification history

2023-09-28 12:57
Mathlib/GroupTheory/Subgroup/MulOpposite.lean
feat(GroupTheory/Submonoid): add opposite submonoids (#7415) …
Deleted Subgroup.oppositeEquivView on Github →
2023-01-26 16:39
Mathlib/GroupTheory/Subgroup/MulOpposite.lean
feat: port GroupTheory.Subgroup.MulOpposite (#1857) …
Added Subgroup.oppositeEquivView on Github →