fact: Definition double_cat_lunitor {C : category} {D : twosided_disp_cat C C} (I : hor_id D) (Cm : hor_comp D) : UU := ∑ (l : double_lunitor_data I Cm), double_lunitor_laws l.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat UniMath.CategoryTheory.TwoSidedDisplayedCats.Isos