--- a/Journal/Paper.thy	Tue Sep 13 12:00:53 2011 +0000
+++ b/Journal/Paper.thy	Wed Sep 14 11:46:50 2011 +0000
@@ -2205,7 +2205,7 @@
 
   \noindent
   and use \eqref{supseqprops} to establish that @{thm lang_UP} holds. This shows
-  that @{term "SUBSEQ A"} is regular, provided @{text A} is.
+  that @{term "SUPSEQ A"} is regular, provided @{text A} is.
   \end{proof}
 
   \noindent