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Theorem add_subgroup.sub_mem

Modification history

2020-12-16 15:31
src/group_theory/subgroup.lean
chore(*): add a `div`/`sub` field to (`add_`)`group`(`_with_zero`) (#5303) …
Deleted add_subgroup.sub_memView on Github →
2020-06-05 05:31
src/group_theory/subgroup.lean
feat(group_theory/subgroup): define normal bundled subgroups (#2947) …
Added add_subgroup.sub_memView on Github →