(* *)
(**************************************************************************)
-set "baseuri" "cic:/matita/RELATIONAL/NPlus/defs".
-include "logic/equality.ma".
-include "Nat/defs.ma".
+include "datatypes/Nat.ma".
inductive NPlus (p:Nat): Nat \to Nat \to Prop \def
| nplus_zero_2: NPlus p zero p
| nplus_succ_2: \forall q, r. NPlus p q r \to NPlus p (succ q) (succ r).
+
+(*CSC: the URI must disappear: there is a bug now *)
+interpretation "natural plus predicate" 'rel_plus x y z =
+ (cic:/matita/RELATIONAL/NPlus/defs/NPlus.ind#xpointer(1/1) x y z).
+
+notation "hvbox(a break + b break == c)"
+ non associative with precedence 95
+for @{ 'rel_plus $a $b $c}.