Definition version_T' version locs g := HORec (version_T_fun version locs g).Definition version_T version locs g s v := version_T' version locs g (s, v).

(* Specifications: *)
Lemma version_T'_eq version locs g : version_T' version locs g = version_T_fun version locs g (version_T' version locs g).
Lemma data_T_duplicable : forall version locs g s v, duplicable (data_T version locs g s v).