fact: Definition disp_leftunitor_nat {C : category} {D : disp_cat C} {M : monoidal C} {DT : disp_tensor D M} {i : D I_{M}} (dlu : disp_leftunitor_data DT i) : UU := ∏ (x y : C) (f : C⟦x,y⟧) (xx : D x) (yy : D y) (ff : xx -->[f] yy), (i ⊗⊗^{DT}_{l} ff) ;; (dlu y yy) = transportb _ (pr1 (monoidal_leftunitorlaw M) _ _ _) (dlu x xx ;; ff).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.FunctorCategory UniMath.CategoryTheory.Monoidal.WhiskeredBifunctors UniMath.CategoryTheory.Monoidal.Categories UniMath.CategoryTheory.Monoidal.Displayed.WhiskeredDisplayedBifunctors UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.DisplayedCats.Projection UniMath.CategoryTheory.DisplayedCats.Functors UniMath.CategoryTheory.DisplayedCats.Constructions UniMath.CategoryTheory.DisplayedCats.Isos UniMath.CategoryTheory.DisplayedCats.NaturalTransformations