proposition: Lemma approxRN_seq_ge0 x n : 0 <= g_ n x.
proof: Proof. by have [+ _]:= approxRN_seq_prop n; rewrite inE /= => -[]. Qed.
imports: mathcomp(all_ssreflect ssralg ssrnum ssrint interval) mathcomp(finmap fingroup perm rat) mathcomp(mathcomp_extra boolp classical_sets cardinality) mathcomp(functions fsbigop set_interval) HB(structures) reals ereal signed topology numfun normedtype sequences esum measure realfun lebesgue_measure lebesgue_integral