Mathlib v3 is deprecated. Go to Mathlib v4

Theorem subgroup.is_complement_top_left

Modification history

2021-11-10 02:49
src/group_theory/complement.lean
feat(group_theory/complement): iff-lemmas for when bottom and top subgroups are complementary (#10143) …
Added subgroup.is_complement_top_leftView on Github →