Definition Grothendieck_topology_is_Grothendieck_topology (GT : Grothendieck_topology) : is_Grothendieck_topology GT := pr2 GT.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.Notations. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.Monics. Require Import UniMath.CategoryTheory.Presheaf. Require Import UniMath.CategoryTheory.Subobjects. Require Import UniMath.CategoryTheory.yoneda. Require Import UniMath.CategoryTheory.GrothendieckToposes.Sieves.