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Theorem subgroup_class.mul_mem_cancel_left

Modification history

2022-04-10 01:48
src/group_theory/subgroup/basic.lean
feat(group_theory): use generic `subobject_class` lemmas (#11758) …
Deleted subgroup_class.mul_mem_cancel_leftView on Github →
2022-04-05 12:54
src/group_theory/subgroup/basic.lean
feat(*): define subobject classes from submonoid up to subfield (#11750) …
Added subgroup_class.mul_mem_cancel_leftView on Github →