fact: Definition maps_pb_squares_to_pb_squares := ∏ (a b c d : C) (f : C ⟦b, a⟧) (g : C ⟦c, a⟧) (h : C⟦d, b⟧) (k : C⟦d,c⟧) (H : h · f = k · g), maps_pb_square_to_pb_square H.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.TransportMorphisms UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Limits.Terminal UniMath.CategoryTheory.Limits.BinProducts UniMath.CategoryTheory.Limits.Equalizers UniMath.CategoryTheory.FunctorCategory UniMath.CategoryTheory.Monics