(* *)
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-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