proposition: Lemma closureEcvg (E : set T): closure E = [set p | exists2 G, ProperFilter G & G --> p /\ globally E `<=` G].
proof: Proof. by rewrite closureEcluster cluster_cvgE. Qed.
imports: HB(structures) mathcomp(all_ssreflect all_algebra finmap generic_quotient) mathcomp(boolp classical_sets functions) mathcomp(cardinality mathcomp_extra fsbigop) reals signed