fact: Definition pb_1cell_on_id_coh {a b₁ b₂ : B} (f : b₁ --> b₂) (g : a --> b₂) : linvunitor π₁ • (pb_1cell_on_id f g ▹ π₁) = (pb_on_1cell_pr1 f (linvunitor_invertible_2cell g))^-1.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Unitors UniMath.Bicategories.Core.BicategoryLaws UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Limits.Pullbacks