proposition: Lemma eqoE (F : filter_on T) (f : T -> V) h (e : T -> W) : f = mklittleo a_tag F h e -> f =o_F e.
proof: Proof. by move=> /eq_some_oP /eqoP. Qed.
imports: HB(structures) mathcomp(all_ssreflect ssralg ssrnum) mathcomp(mathcomp_extra boolp classical_sets functions) ereal reals signed topology normedtype prodnormedzmodule