{A B C : Type} `{Is1Cat A, Is1Cat B, Is1Cat C} (F : A -> B -> C) `{!Is0Bifunctor F, !Is1Bifunctor F} (a : A) {b0 b1 : B} {g g' : b0 $-> b1} (q : g $== g') : fmap01 F a g $== fmap01 F a g' := fmap2 (F a) q.
Require Import Basics.Overture Basics.Tactics. Require Import Types.Forall Types.Prod. Require Import WildCat.Core WildCat.Prod WildCat.Equiv WildCat.NatTrans