fact: Definition disp_prod_functor_over_fixed_base_eso (FF_ff : disp_functor_disp_ess_split_surj FF) (FF'_ff : disp_functor_disp_ess_split_surj FF') : disp_functor_disp_ess_split_surj disp_prod_functor_over_fixed_base.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.DisplayedCats.Functors UniMath.CategoryTheory.DisplayedCats.Constructions UniMath.CategoryTheory.DisplayedCats.Total UniMath.CategoryTheory.DisplayedCats.Fibrations UniMath.CategoryTheory.DisplayedCats.Total UniMath.CategoryTheory.DisplayedCats.Isos