X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Flibrary%2FZ%2Fz.ma;h=31c3a7003bdffca309780ce3e38122712efe4368;hb=0137a346eaaf9ae7a0b23c7a3b4c6628073b7dfb;hp=6b750c44c2d7d747b06b0e05b6a828e6752d8699;hpb=9eabe046c1182960de8cfdba96c5414224e3a61e;p=helm.git

diff --git a/helm/software/matita/library/Z/z.ma b/helm/software/matita/library/Z/z.ma
index 6b750c44c..31c3a7003 100644
--- a/helm/software/matita/library/Z/z.ma
+++ b/helm/software/matita/library/Z/z.ma
@@ -20,12 +20,14 @@ inductive Z : Set \def
 | pos : nat \to Z
 | neg : nat \to Z.
 
+interpretation "Integers" 'Z = Z.
+
 definition Z_of_nat \def
 \lambda n. match n with
 [ O \Rightarrow  OZ 
 | (S n)\Rightarrow  pos n].
 
-coercion cic:/matita/Z/z/Z_of_nat.con.
+coercion Z_of_nat.
 
 definition neg_Z_of_nat \def
 \lambda n. match n with