proposition: Lemma filter_of_nearI (X : Type) (fX : filteredType X) (x : fX) : forall P, nbhs x P = @prop_near1 X fX x P (inPhantom (forall x, P x)).
proof: Proof. by []. Qed.
imports: HB(structures) mathcomp(all_ssreflect all_algebra finmap generic_quotient) mathcomp(boolp classical_sets functions) mathcomp(cardinality mathcomp_extra fsbigop) reals signed