Theorem Subgroup.mul_normal

Modification history

2025-03-25 08:54
Mathlib/Algebra/Group/Subgroup/Pointwise.lean
feat(Algebra/Group/Subgroup, GroupTheory/QuotientGroup): strengthen second isomorphism theorem for groups (#22650) …
Modified Subgroup.mul_normalView on Github →
2023-02-01 11:22
Mathlib/GroupTheory/Subgroup/Pointwise.lean
feat: port GroupTheory.Subgroup.Pointwise (#1981)
Added Subgroup.mul_normalView on Github →