fact: Definition intdom_iso_equiv_weq (X Y : ob intdom_category) : weq (z_iso X Y) (ringiso (X : intdom) (Y : intdom)).
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.Foundations.UnivalenceAxiom UniMath.Algebra.BinaryOperations UniMath.Algebra.Monoids UniMath.Algebra.RigsAndRings UniMath.Algebra.Domains_and_Fields UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence