proposition: Lemma isaprop_isSheaf (GT : GrothendieckTopology) (P : Presheaf) : isaprop(isSheaf P GT).
proof: Proof. apply impred_isaprop; intros t. apply impred_isaprop; intros S. apply impred_isaprop; intros isCOS. apply impred_isaprop; intros τ. apply isapropiscontr. Qed.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.CategoryTheory.Limits.Pullbacks UniMath.CategoryTheory.Limits.Equalizers UniMath.CategoryTheory.Limits.Products UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Limits.Pullbacks UniMath.CategoryTheory.slicecat UniMath.CategoryTheory.Monics UniMath.CategoryTheory.Subobjects UniMath.CategoryTheory.yoneda UniMath.CategoryTheory.opp_precat UniMath.CategoryTheory.Categories.HSET.Core UniMath.CategoryTheory.Categories.HSET.Limits UniMath.CategoryTheory.Limits.Graphs.Pullbacks UniMath.CategoryTheory.Limits.Graphs.Equalizers UniMath.CategoryTheory.Subcategory.Core UniMath.CategoryTheory.Subcategory.Full UniMath.CategoryTheory.Equivalences.Core