fact: Definition lassociator_lassociator {a b c d e: C} (f : C⟦a, b⟧) (g : C⟦b, c⟧) (h : c --> d) (i : C⟦d, e⟧) : (f ◃ lassociator g h i) • lassociator _ _ _ • (lassociator _ _ _ ▹ i) = lassociator f g _ • lassociator _ _ _ := pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 C)))))))))))))))))))) _ _ _ _ _ f g h i.
imports: UniMath.Tactics.EnsureStructuredProofs UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.PrecategoryBinProduct