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Theorem subgroup.relindex_eq_relindex_sup

Modification history

2022-11-30 13:42
src/group_theory/index.lean
refactor(subgroup/basic): use `subgroup.subgroup_of` as the normal form (#17744) …
Deleted subgroup.relindex_eq_relindex_supView on Github →
2022-04-07 07:05
src/group_theory/index.lean
chore(group_theory/index): Add `to_additive` (#13191) …
Modified subgroup.relindex_eq_relindex_supView on Github →
2021-10-25 06:51
src/group_theory/index.lean
feat(group_theory/index): Second isomorphism theorem in terms of `relindex` (#9915) …
Added subgroup.relindex_eq_relindex_supView on Github →