proposition: Lemma equicontinuous_subset_id (W V : set (X -> Y)) : W `<=` V -> equicontinuous V id -> equicontinuous W id.
proof: Proof. move=> WsubV; apply: equicontinuous_subset => ? [y ? <- /=]; exists y => //. exact: WsubV. Qed.
imports: HB(structures) mathcomp(all_ssreflect all_algebra finmap generic_quotient) mathcomp(boolp classical_sets functions) mathcomp(cardinality mathcomp_extra fsbigop) reals signed