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Theorem monoid_hom.range_restrict_mker

Modification history

2021-09-01 19:25
src/group_theory/submonoid/operations.lean
feat(group_theory): Add `monoid_hom.mker` and generalise the codomain for `monoid_hom.ker` (#8532) …
Added monoid_hom.range_restrict_mkerView on Github →