fact: Definition restrict (A : hsubtype Open) (f : F (⋃ A)) (U : A) : F (pr1 U) := restriction (contained_in_union_open U) f.
imports: UniMath.Algebra.RigsAndRings UniMath.MoreFoundations.Subtypes UniMath.Topology.Topology UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.opp_precat UniMath.CategoryTheory.Categories.PreorderCategories UniMath.CategoryTheory.Categories.Commring UniMath.AlgebraicGeometry.Topology