fact: Definition Build_CRingHomomorphism' (A B : CRing) (map : GroupHomomorphism A B) {H : IsMonoidPreserving (Aop:=cring_mult) (Bop:=cring_mult) (Aunit:=one) (Bunit:=one) map} : CRingHomomorphism A B := Build_CRingHomomorphism map (Build_IsSemiRingPreserving _ (grp_homo_ishomo _ _ map) H).
imports: WildCat Spaces.Nat.Core Classes.interfaces.abstract_algebra Algebra.AbGroups Classes.theory.rings Modalities.ReflectiveSubuniverse