diff -r e1fce873b814 -r d797baa3d57c src/Sequents/Sequents.thy
--- a/src/Sequents/Sequents.thy	Fri Dec 17 17:08:56 2010 +0100
+++ b/src/Sequents/Sequents.thy	Fri Dec 17 17:43:54 2010 +0100
@@ -28,9 +28,7 @@
 
 (* concrete syntax *)
 
-nonterminals
-  seq seqobj seqcont
-
+nonterminal seq and seqobj and seqcont
 
 syntax
  "_SeqEmp"         :: seq                                  ("")