proposition: Lemma nbhs_nearE {U} {T : filteredType U} (x : T) (P : set U) : nbhs x P = \near 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