fact: Definition preserves_leftunitality'' {C D : category} {M : monoidal C} {N : monoidal D} {F : functor C D} (Fm : fmonoidal M N F) : ∏ (x : C), (pr1 (fmonoidal_preservestensorstrongly Fm I_{M} x)) · (pr1 (fmonoidal_preservesunitstrongly Fm) ⊗^{N} (identity (F x))) · lu^{N}_{F x} = #F (lu^{M}_{x}).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.whiskering UniMath.CategoryTheory.Monoidal.WhiskeredBifunctors UniMath.CategoryTheory.Monoidal.Categories UniMath.CategoryTheory.Monoidal.Structure.Symmetric