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Theorem subgroup.comap_map_eq_self_of_injective

Modification history

2021-06-28 04:53
src/group_theory/subgroup.lean
feat(group_theory/subgroup): lemmas for normal subgroups of subgroups (#7271)
Modified subgroup.comap_map_eq_self_of_injectiveView on Github →
2021-04-06 05:50
src/group_theory/subgroup.lean
chore(group_theory/subgroup): translate map comap lemmas from linear_map (#6979) …
Added subgroup.comap_map_eq_self_of_injectiveView on Github →