Definition make_parallell_diagram {C : category} (X : UU) (x y : C) (f : ∏ (t : X), x --> y) : diagram (parallell_graph X) C. Proof. use make_diagram. - exact(two_rec x y). - use two_rec_dep. + use(two_rec_dep _ (empty_rect _) f). + exact(λ _, empty_rect _). Defined.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Limits.Graphs.Colimits. Require Import UniMath.Combinatorics.StandardFiniteSets. Require Import UniMath.Combinatorics.FiniteSets.