proposition: Lemma is_LimInf_seq_ext (u v : nat -> R) (l : Rbar) : (forall n, u n = v n) -> is_LimInf_seq u l -> is_LimInf_seq v l.
proof: Proof. move => Hext. apply is_LimInf_seq_ext_loc. exists O => n _ ; by apply Hext. Qed.
imports: Coq(Reals Psatz ssreflect) Rcomplements Rbar Lub Markov Hierarchy