fact: Definition vcomp2 {C : prebicat_data} {a b : C} {f g h: C⟦a, b⟧} : f ==> g → g ==> h → f ==> h := λ x y, pr1 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 C)))))))) _ _ _ _ _ x y.
imports: UniMath.Tactics.EnsureStructuredProofs UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.PrecategoryBinProduct