freescale porting, work in progress

[helm.git] / helm / software / matita / contribs / ng_assembly / common / nat.ma

diff --git a/helm/software/matita/contribs/ng_assembly/common/nat.ma b/helm/software/matita/contribs/ng_assembly/common/nat.ma
index 7e9ec23e436463bdc3b09b4bb7da2e5d7a4a2b85..9188bef9edb808b057ec00d08a563477d98124b9 100755 (executable)
--- a/helm/software/matita/contribs/ng_assembly/common/nat.ma
+++ b/helm/software/matita/contribs/ng_assembly/common/nat.ma
@@ -15,8 +15,8 @@
 (* ********************************************************************** *)
 (*                          Progetto FreeScale                            *)
 (*                                                                        *)
-(*   Sviluppato da: Cosimo Oliboni, oliboni@cs.unibo.it                   *)
-(*     Cosimo Oliboni, oliboni@cs.unibo.it                                *)
+(*   Sviluppato da: Ing. Cosimo Oliboni, oliboni@cs.unibo.it              *)
+(*   Ultima modifica: 05/08/2009                                          *)
 (*                                                                        *)
 (* ********************************************************************** *)
 
@@ -26,15 +26,17 @@ include "num/bool.ma".
 (* NATURALI *)
 (* ******** *)
 
-inductive nat : Type ≝
+ninductive nat : Type ≝
   O : nat
 | S : nat → nat.
 
+(*
 interpretation "Natural numbers" 'N = nat.
 
 default "natural numbers" cic:/matita/common/nat/nat.ind.
 
 alias num (instance 0) = "natural number".
+*)
 
 nlet rec eq_nat (n1,n2:nat) on n1 ≝
  match n1 with