fact: Definition natequiv_functor_assoc_ff_f {A B C D : Type} `{IsGraph A, HasEquivs B, HasEquivs C, HasEquivs D} (F : C -> D) (G : B -> C) (K : A -> B) `{!Is0Functor F, !Is0Functor G, !Is0Functor K} : NatEquiv ((F o G) o K) (F o (G o K)).
imports: Basics.Overture Basics.Tactics WildCat.Core WildCat.Equiv WildCat.Square