Lemma isaprop_isfilter_finite_intersection : isaprop isfilter_finite_intersection. Proof. apply impred_isaprop ; intros L. apply isapropimpl. apply propproperty. Qed.
Require Import UniMath.Foundations.Preamble. Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.MoreFoundations.PartA.