diff -r 3d3e356778b5 -r ad9277743664 src/HOL/HOL.thy
--- a/src/HOL/HOL.thy	Fri Jan 04 19:28:57 2002 +0100
+++ b/src/HOL/HOL.thy	Fri Jan 04 19:29:30 2002 +0100
@@ -75,7 +75,7 @@
   "_Let (_binds b bs) e"  == "_Let b (_Let bs e)"
   "let x = a in e"        == "Let a (%x. e)"
 
-syntax ("" output)
+syntax (output)
   "="           :: "['a, 'a] => bool"                    (infix 50)
   "~="          :: "['a, 'a] => bool"                    (infix 50)