--- a/src/HOL/NSA/HyperNat.thy Fri Apr 22 15:57:43 2011 +0200
+++ b/src/HOL/NSA/HyperNat.thy Sat Apr 23 13:00:19 2011 +0200
@@ -11,7 +11,7 @@
imports StarDef
begin
-types hypnat = "nat star"
+type_synonym hypnat = "nat star"
abbreviation
hypnat_of_nat :: "nat => nat star" where