Theorem Subgroup.index_map_eq
Modification history
2025-04-18 07:38
Mathlib/GroupTheory/Index.lean
feat: the index of the scaling of a subgroup (#24025) …
Modified Subgroup.index_map_eqView on Github →2024-07-15 20:56
Mathlib/GroupTheory/Index.lean
refactor(GroupTheory/Index): Replace `Fintype.card` with `Nat.card` (#13630) …
Modified Subgroup.index_map_eqView on Github →