proposition: Lemma ereal_nbhs_pinfty_ge r : r \is Num.real -> \forall x \near +oo, r%:E <= x.
proof: Proof. by exists r; split => //; apply: ltW. Qed.
imports: HB(structures) mathcomp(all_ssreflect all_algebra finmap) mathcomp(mathcomp_extra boolp classical_sets functions) mathcomp(fsbigop cardinality set_interval) reals signed topology constructive_ereal