(* kernel version: basic, relative, global *)
(* note : ufficial basic lambda-delta *)
-type uri = Common.uri
-type id = Common.id
+type uri = Item.uri
+type id = Item.id
type bind = Void (* exclusion *)
| Abst of term (* abstraction *)
and attrs = attr list
-type obj = bind Common.obj (* age, uri, binder *)
+type obj = bind Item.obj (* age, uri, binder *)
-type item = bind Common.item
+type item = bind Item.item
type context = (attrs * bind) list (* attrs, binder *)