proposition: Lemma bigO_eqO (F : filter_on T) (g : T -> W) (f : {O_F g}) : (f : _ -> _) =O_F g.
proof: Proof. by apply/eqOP; apply: bigOP. Qed.
imports: HB(structures) mathcomp(all_ssreflect ssralg ssrnum) mathcomp(mathcomp_extra boolp classical_sets functions) ereal reals signed topology normedtype prodnormedzmodule