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Def submonoid.Union_of_directed

Modification history

2020-04-01 06:47
src/group_theory/submonoid.lean
refactor(group_theory/submonoid): review API (#2173) …
Deleted submonoid.Union_of_directedView on Github →
2019-11-12 18:51
src/group_theory/submonoid.lean
feat(group_theory/submonoid): add bundled submonoids and various lemmas (#1623) …
Added submonoid.Union_of_directedView on Github →