Definition empty_sieve_functor : PreShv C := InitialObject Initial_PreShv.
Require Import UniMath.Foundations.All. Require Import UniMath.CategoryTheory.Categories.HSET.MonoEpiIso. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.Core.NaturalTransformations. Require Import UniMath.CategoryTheory.Limits.Initial. Require Import UniMath.CategoryTheory.Monics. Require Import UniMath.CategoryTheory.Presheaf. Require Import UniMath.CategoryTheory.yoneda. Require Import UniMath.CategoryTheory.GrothendieckToposes.Sieves.