+(**************************************************************************)
+(* ___ *)
+(* ||M|| *)
+(* ||A|| A project by Andrea Asperti *)
+(* ||T|| *)
+(* ||I|| Developers: *)
+(* ||T|| The HELM team. *)
+(* ||A|| http://helm.cs.unibo.it *)
+(* \ / *)
+(* \ / This file is distributed under the terms of the *)
+(* v GNU General Public License Version 2 *)
+(* *)
+(**************************************************************************)
+
+universe constraint Type[0] < Type[1].
+universe constraint Type[1] < Type[2].
+universe constraint CProp[0] < CProp[1].
+universe constraint CProp[1] < CProp[2].
+universe constraint Type[0] ≤ CProp[0].
+universe constraint CProp[0] ≤ Type[0].
+universe constraint Type[1] ≤ CProp[1].
+universe constraint CProp[1] ≤ Type[1].
+universe constraint Type[2] ≤ CProp[2].
+universe constraint CProp[2] ≤ Type[2].
\ No newline at end of file