Theorem Subgroup.comap_equiv_eq_map_symm'

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.comap_equiv_eq_map_symm'View on Github →

2024-01-02 07:02

Mathlib/GroupTheory/Subgroup/Basic.lean

feat: Prove isomorphism implies equality of normal closure subgroups (#9185) …

Added Subgroup.comap_equiv_eq_map_symm'View on Github →