fact: Definition make_Filter {X : UU} (F : (X → hProp) → hProp) (Himp : isfilter_imply F) (Htrue : isfilter_htrue F) (Hand : isfilter_and F) (Hempty : isfilter_notempty F) : Filter X := F ,, (Himp ,, (isfilter_finite_intersection_carac F Htrue Hand)) ,, Hempty.
imports: UniMath.Foundations.Preamble UniMath.MoreFoundations.Tactics UniMath.Topology.Prelim UniMath.MoreFoundations.PartA