fact: Definition id_first_isomorphism_inj : A = B && in_image_hom f := id_isomorphic isomorphic_first_isomorphism_inj.
imports: HSet Colimits.Quotient Modalities.ReflectiveSubuniverse Classes.interfaces.canonical_names Classes.theory.ua_isomorphic Classes.theory.ua_subalgebra Classes.theory.ua_quotient_algebra