x : Is1Natural (opyon (F x)) (fun x0 : D => opyon x (G x0)) (γ x). Proof. nrapply is1natural_opyoneda. exact _. Defined.
Require Import Basics.Utf8 Basics.Overture Basics.Tactics Basics.Equivalences. Require Import WildCat.Core. Require Import WildCat.NatTrans. Require Import WildCat.Equiv. Require Import WildCat.Prod. Require Import WildCat.Opposite. Require Import WildCat.Yoneda. Require Import WildCat.FunctorCat. Require Import WildCat.Universe. Require Import Types.Prod.