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Theorem subgroup.comap_subtype_normalizer_eq

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) …
Deleted subgroup.comap_subtype_normalizer_eqView on Github →
2022-01-26 13:30
src/group_theory/subgroup/basic.lean
feat(group_theory/subgroup/basic): add lemmas related to map, comap, normalizer (#11637) …
Added subgroup.comap_subtype_normalizer_eqView on Github →