(** ** From OrderedType to OrderedTypeOrig. *)
Module Backport_OT (O:OrderedType) <: OrderedTypeOrig.
Include Backport_DT O. (* Provides : t eq eq_refl eq_sym eq_trans eq_dec *)
Definition lt := O.lt.

Lemma lt_trans : Transitive lt.
#[global]
Instance lt_strorder : StrictOrder lt.