
diff -r e7c9900cca4d -r a7701b1d6c6a src/HOL/Real/Hyperreal/HyperDef.thy
--- a/src/HOL/Real/Hyperreal/HyperDef.thy	Fri Dec 01 19:42:05 2000 +0100
+++ b/src/HOL/Real/Hyperreal/HyperDef.thy	Fri Dec 01 19:42:35 2000 +0100
@@ -9,7 +9,7 @@
 
 consts 
  
-    FreeUltrafilterNat   :: nat set set
+    FreeUltrafilterNat   :: nat set set    ("\\<U>")
 
 defs
 




