diff -r dd58f13a8eb4 -r eb85850d3eb7 src/HOL/Integ/IntDef.thy
--- a/src/HOL/Integ/IntDef.thy	Fri Nov 17 02:19:55 2006 +0100
+++ b/src/HOL/Integ/IntDef.thy	Fri Nov 17 02:20:03 2006 +0100
@@ -870,9 +870,11 @@
 *}
 
 definition
-  int_aux :: "int \<Rightarrow> nat \<Rightarrow> int"
+  int_aux :: "int \<Rightarrow> nat \<Rightarrow> int" where
   "int_aux i n = (i + int n)"
-  nat_aux :: "nat \<Rightarrow> int \<Rightarrow> nat"
+
+definition
+  nat_aux :: "nat \<Rightarrow> int \<Rightarrow> nat" where
   "nat_aux n i = (n + nat i)"
 
 lemma [code]: