Definition make_internal_issymm_mor {C : category} {x : C} (R : internal_relation x) (s : R --> R) (p : s · internal_relation_src R = internal_relation_tar R) (q : s · internal_relation_tar R = internal_relation_src R) : internal_issymm_mor R := s ,, p ,, q.
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.