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Def ring_hom.restrict

Modification history

2022-12-13 03:30
src/ring_theory/subsemiring/basic.lean
feat(ring_theory/valuation/valuation_subring): Add `valuation_subring.comap` (#17310) …
Modified ring_hom.restrictView on Github →
2022-06-09 09:58
src/ring_theory/subring/basic.lean
refactor(algebra/sub{monoid,group,ring,semiring,field}): merge together the `restrict` and `cod_restrict` helpers (#14548) …
Modified ring_hom.restrictView on Github →
2020-08-26 14:45
src/ring_theory/subring.lean
feat(ring_theory/bundled_subring): add bundled subrings (#3886)
Added ring_hom.restrictView on Github →