proposition: Lemma ereal_nonincreasing_is_cvgn (R : realType) (u_ : (\bar R) ^nat) : nonincreasing_seq u_ -> cvgn u_.
proof: Proof. by move=> ?; apply/cvg_ex; eexists; apply: ereal_nonincreasing_cvgn. Qed.
imports: mathcomp(all_ssreflect ssralg ssrint ssrnum matrix) mathcomp(interval rat) mathcomp(mathcomp_extra boolp classical_sets functions) mathcomp(set_interval) reals ereal signed topology normedtype landau