fact: Definition hb_vcomp {B : hcomp_bicat_data} {b₁ b₂ : B} {f g h : hb_mor b₁ b₂} (α : hb_cell f g) (β : hb_cell g h) : hb_cell f h := pr1 (pr222 (pr222 B)) _ _ _ _ _ α β.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.PrecategoryBinProduct UniMath.Bicategories.WkCatEnrichment.prebicategory UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.BicategoryLaws