fact: Definition bin_hrel_is_z_iso_to_image {X Y : hSet} {r : bin_hrel X Y} (p : is_z_isomorphism (C := REL) r) : ∏ x : X, ∑ y : Y, r x y.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Categories.HSET.All