proposition: Proposition internal_eval_natural (x : V) {y₁ y₂ : V} (f : y₁ --> y₂) : internal_eval x y₁ · f = internal_lam (internal_eval _ _ · f) #⊗ identity x · internal_eval x y₂.
proof: Proof. rewrite internal_beta. apply idpath. Qed.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.FunctorCategory UniMath.CategoryTheory.Adjunctions.Core UniMath.CategoryTheory.Monoidal.WhiskeredBifunctors UniMath.CategoryTheory.Monoidal.Categories UniMath.CategoryTheory.Monoidal.Structure.Symmetric