Mathlib v3 is deprecated. Go to Mathlib v4

Theorem subgroup.subgroup_of_map_subtype

Modification history

2022-11-30 13:42
src/group_theory/subgroup/basic.lean
refactor(subgroup/basic): use `subgroup.subgroup_of` as the normal form (#17744) …
Modified subgroup.subgroup_of_map_subtypeView on Github →
2021-06-28 04:53
src/group_theory/subgroup.lean
feat(group_theory/subgroup): lemmas for normal subgroups of subgroups (#7271)
Added subgroup.subgroup_of_map_subtypeView on Github →