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Theorem subgroup.inv_mem_iff

Modification history

2022-04-10 01:48
src/group_theory/subgroup/basic.lean
feat(group_theory): use generic `subobject_class` lemmas (#11758) …
Deleted subgroup.inv_mem_iffView on Github →
2020-06-09 20:16
src/group_theory/subgroup.lean
refactor(group_theory/subgroup): swap `mul_mem_cancel_left/right` (#3011) …
Added subgroup.inv_mem_iffView on Github →