--- /dev/null
+(**************************************************************************)
+(* ___ *)
+(* ||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].
+
+notation "hvbox(a break \to b)"
+ right associative with precedence 20
+for @{ \forall $_:$a.$b }.
+
+notation "hvbox( * )"
+ non associative with precedence 90
+ for @{ 'B }.
+
+inductive l: Type[0] ≝ L: l.
+
+inductive g: Type[0] ≝ G: g.
+
+axiom f: l → Prop.
+
+interpretation "b" 'B = L.
+
+interpretation "b" 'B = G.
+
+(* FG: two interpretations of the same notation and with the same description
+ override eachother, so the description is not just informative
+*)
+
+axiom s: f *.