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Theorem subgroup.index_mul_card

Modification history

2021-12-02 03:37
src/group_theory/index.lean
doc(group_theory/index): add a theorem name and fix a to_additive (#10564) …
Modified subgroup.index_mul_cardView on Github →
2021-09-08 06:17
src/group_theory/index.lean
feat(group_theory/index): define the index of a subgroup (#8971) …
Added subgroup.index_mul_cardView on Github →