proposition: Proposition isaprop_double_runitor_laws {C : category} {D : twosided_disp_cat C C} {I : hor_id D} {Cm : hor_comp D} (r : double_runitor_data I Cm) : isaprop (double_runitor_laws r).
proof: Proof. repeat (use impred ; intro). apply isaset_disp_mor. Qed.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat UniMath.CategoryTheory.TwoSidedDisplayedCats.Isos