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Def ring_hom.restrict_field

Modification history

2022-06-09 09:58
src/field_theory/subfield.lean
refactor(algebra/sub{monoid,group,ring,semiring,field}): merge together the `restrict` and `cod_restrict` helpers (#14548) …
Deleted ring_hom.restrict_fieldView on Github →
2020-09-17 15:33
src/field_theory/subfield.lean
refactor(field-theory/subfield): bundled subfields (#4159) …
Added ring_hom.restrict_fieldView on Github →