(I : Type) {A : Type} (x : I -> A) `{Coproduct I _ x} : A := cat_prod (A:=A^op) I x.
Require Import Basics.Overture Basics.Tactics Basics.Decidable. Require Import Types.Bool. Require Import WildCat.Core WildCat.Equiv WildCat.Forall WildCat.NatTrans