fact: Definition double_lunitor_laws {C : category} {D : twosided_disp_cat C C} {I : hor_id D} {Cm : hor_comp D} (l : double_lunitor_data I Cm) : UU := ∏ (x₁ x₂ y₁ y₂ : C) (h₁ : D x₁ y₁) (h₂ : D x₂ y₂) (v₁ : x₁ --> x₂) (v₂ : y₁ --> y₂) (τ : h₁ -->[ v₁ ][ v₂ ] h₂), transportb_disp_mor2 (id_right _ @ !(id_left _)) (id_right _ @ !(id_left _)) (l _ _ h₁ ;;2 τ) = double_hor_comp_mor Cm (double_id_mor I _) τ ;;2 l _ _ h₂.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat UniMath.CategoryTheory.TwoSidedDisplayedCats.Isos