Definition yon_binprod_z_iso : z_iso (yon (PC X Y)) (@BinProducts_PreShv C (yon X) (yon Y)) := make_z_iso (C := [C^op, HSET, has_homsets_HSET]) yon_binprod_nat_trans yon_binprod_inv_nat_trans yon_binprod_is_inverse.
Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.Core.Isos. Require Import UniMath.CategoryTheory.Core.NaturalTransformations. Require Import UniMath.CategoryTheory.Limits.BinProducts. Require Import UniMath.CategoryTheory.Limits.Preservation. Require Import UniMath.CategoryTheory.Presheaf. Require Import UniMath.CategoryTheory.opp_precat. Require Import UniMath.CategoryTheory.Categories.HSET.Core. Require Import UniMath.CategoryTheory.yoneda.