fact: Definition homotsec_natural_natural {X Y : UU} {f g : X → Y} (e : f ~ g) {x y : X} {p q : x = y} (h : p = q) : maponpaths (λ s : g x = g y, e x @ s) (maponpaths (maponpaths g) h) @ homotsec_natural e q = homotsec_natural e p @ maponpaths (λ s : f x = f y, s @ e y) (maponpaths (maponpaths f) h).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.PrecategoryBinProduct UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Core.BicategoryLaws UniMath.Bicategories.PseudoFunctors.Display.PseudoFunctorBicat UniMath.Bicategories.PseudoFunctors.PseudoFunctor UniMath.Bicategories.Transformations.PseudoTransformation UniMath.Bicategories.Core.Examples.TwoType UniMath.Bicategories.PseudoFunctors.Examples.ApFunctor