fact: Definition postcomp_arr_id {C : category} {V : monoidal_cat} (E : enrichment C V) (x y : C) : postcomp_arr E _ (identity y) = identity (E ⦃ x , y ⦄).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.covyoneda UniMath.CategoryTheory.Categories.HSET.All UniMath.CategoryTheory.Monoidal.Categories