fact: Definition double_cat : UU := ∑ (C : category) (D : twosided_disp_cat C C) (I : hor_id D) (Cm : hor_comp D) (l : double_cat_lunitor I Cm) (r : double_cat_runitor I Cm) (a : double_cat_associator Cm), triangle_law l r a × pentagon_law a.
imports: UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat UniMath.CategoryTheory.TwoSidedDisplayedCats.Isos UniMath.CategoryTheory.TwoSidedDisplayedCats.Univalence UniMath.Bicategories.Core.Examples.BicatOfUnivCats UniMath.Bicategories.DoubleCategories.Basics.DoubleCategoryBasics