Proposition isaprop_internal_issymm {C : category} {x : C} (R : internal_relation x) : isaprop (internal_issymm R). Proof. use impred ; intro w. apply isaprop_issymm. Qed.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Prelude. Require Import UniMath.CategoryTheory.Limits.Pullbacks. Require Import UniMath.CategoryTheory.Limits.Coequalizers. Require Import UniMath.CategoryTheory.RegularAndExact.RegularCategory.