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Theorem card_subgroup_dvd_card

Modification history

2021-04-06 05:50
src/group_theory/order_of_element.lean
chore(group_theory/order_of_element): move some lemmas (#7031) …
Deleted card_subgroup_dvd_cardView on Github →
2020-08-02 16:01
src/group_theory/order_of_element.lean
chore(group_theory/*): refactor quotient groups to use bundled subgroups (#3321)
Modified card_subgroup_dvd_cardView on Github →
2018-12-20 09:31
group_theory/order_of_element.lean
feat(group_theory/order_of_element): lemmas about card of subgroups and normalizer (#545)
Added card_subgroup_dvd_cardView on Github →