Definition cone_op {C : category} {g : graph} {d : diagram g C} {c : C} (cc : cone d c) : cocone (diagram_op d) c. Proof. exists (λ v, pr1 cc v). exact (λ v w e, pr2 cc w v e). Defined.
Require Import UniMath.Foundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.OppositeCategory.Core. Require Import UniMath.CategoryTheory.Limits.Cones. Require Import UniMath.CategoryTheory.Limits.Graphs.Colimits. Require Import UniMath.CategoryTheory.Limits.Graphs.Limits. Require Import UniMath.CategoryTheory.Chains.Chains. Require Import UniMath.CategoryTheory.Chains.Cochains.