fact: Definition discrete_twosided_disp_cat_is_fibration {C₁ C₂ : category} {D : twosided_disp_cat C₁ C₂} (HD : discrete_twosided_disp_cat D) (HD' : is_discrete_twosided_fibration HD) : twosided_fibration D.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat UniMath.CategoryTheory.TwoSidedDisplayedCats.Isos UniMath.CategoryTheory.TwoSidedDisplayedCats.Univalence UniMath.CategoryTheory.TwoSidedDisplayedCats.Discrete