X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Flibrary%2Fnat%2Fnat.ma;h=c54b41c8d71e73262c949ea5043b6ddd2c4cc5d4;hb=9ead65f0b6b17fc8f01ffcb977c3c252594724a9;hp=b54bc76a9b4b416e80a35d5bb01b48fea9b70f5c;hpb=f275a4daa42f8ab455020ec5a7ce7bf69b460c37;p=helm.git

diff --git a/helm/software/matita/library/nat/nat.ma b/helm/software/matita/library/nat/nat.ma
index b54bc76a9..c54b41c8d 100644
--- a/helm/software/matita/library/nat/nat.ma
+++ b/helm/software/matita/library/nat/nat.ma
@@ -12,14 +12,14 @@
 (*                                                                        *)
 (**************************************************************************)
 
-set "baseuri" "cic:/matita/nat/nat".
-
 include "higher_order_defs/functions.ma".
 
 inductive nat : Set \def
   | O : nat
   | S : nat \to nat.
 
+interpretation "Natural numbers" 'N = nat.
+
 definition pred: nat \to nat \def
  \lambda n:nat. match n with
  [ O \Rightarrow  O