Definition covering_sieve_is_covering (S : covering_sieve) : site_topology C X S := pr2 S.
Require Import UniMath.Foundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.GrothendieckToposes.Sieves. Require Import UniMath.CategoryTheory.GrothendieckToposes.Topologies.