diff -r 0321e89e66a3 -r e163fd99de44 Nominal-General/nominal_library.ML
--- a/Nominal-General/nominal_library.ML	Mon Jul 19 14:20:23 2010 +0100
+++ b/Nominal-General/nominal_library.ML	Mon Jul 19 16:59:43 2010 +0100
@@ -61,7 +61,7 @@
 
 fun last2 [] = raise Empty
   | last2 [_] = raise Empty
-  | last2 [x, y] = (x,y)
+  | last2 [x, y] = (x, y)
   | last2 (_ :: xs) = last2 xs
 
 fun dest_listT (Type (@{type_name list}, [T])) = T