Theorem Subgroup.normal_subgroupOf_of_le_normalizer

Modification history

2025-03-25 08:54
Mathlib/Algebra/Group/Subgroup/Basic.lean
feat(Algebra/Group/Subgroup, GroupTheory/QuotientGroup): strengthen second isomorphism theorem for groups (#22650) …
Added Subgroup.normal_subgroupOf_of_le_normalizerView on Github →