fact: Definition is_opcartesian_total_setcategory_of_set_functor_factor_unique : isaprop (∑ φ, # (pr1_total_category_of_set_functor G) φ = h × f · φ = g).
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.Core.Setcategories UniMath.CategoryTheory.DisplayedCats.StreetOpFibration UniMath.CategoryTheory.Categories.CategoryOfSetCategories UniMath.CategoryTheory.GrothendieckConstruction.TotalCategory UniMath.CategoryTheory.GrothendieckConstruction.Projection