Theorem Subgroup.relindex_map_map_of_injective

Modification history

2025-09-13 17:16

Mathlib/GroupTheory/Index.lean

chore(GroupTheory/Index): rename `relindex` to `relIndex` (#19872) …

Deleted Subgroup.relindex_map_map_of_injective View on Github →

2025-08-11 22:54

Mathlib/GroupTheory/Index.lean

feat(ZLattice/Covolume): add `covolume_div_covolume_eq_relindex` (#25730) …

Added Subgroup.relindex_map_map_of_injective View on Github →