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Subgroup.index_mul_card
Modification history
2024-07-15 20:56
Mathlib/GroupTheory/Index.lean
refactor(GroupTheory/Index): Replace `Fintype.card` with `Nat.card` (#13630) …
Modified
Subgroup.index_mul_card
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2023-05-07 05:02
Mathlib/GroupTheory/Index.lean
chore: bye-bye, solo `by`s! (#3825) …
Modified
Subgroup.index_mul_card
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2023-02-14 07:17
Mathlib/GroupTheory/Index.lean
feat: port GroupTheory.Index (#2222)
Added
Subgroup.index_mul_card
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