Theorem Subgroup.map_symm_eq_iff_map_eq

Modification history

2024-11-21 09:25
Mathlib/Algebra/Group/Subgroup/Basic.lean
chore(Algebra/Group/Subgroup): split `Lattice`, `Map`, `Ker` from `Basic.lean` (#19295) …
Modified Subgroup.map_symm_eq_iff_map_eqView on Github →
2023-05-07 05:02
Mathlib/GroupTheory/Subgroup/Basic.lean
chore: bye-bye, solo `by`s! (#3825) …
Modified Subgroup.map_symm_eq_iff_map_eqView on Github →
2023-01-26 10:26
Mathlib/GroupTheory/Subgroup/Basic.lean
feat: port GroupTheory.Subgroup.Basic (#1797)
Added Subgroup.map_symm_eq_iff_map_eqView on Github →