--- a/src/HOL/Proofs/Lambda/ListOrder.thy Fri Feb 17 11:24:39 2012 +0100
+++ b/src/HOL/Proofs/Lambda/ListOrder.thy Fri Feb 17 15:42:26 2012 +0100
@@ -7,7 +7,7 @@
theory ListOrder imports Main begin
-declare [[syntax_ambiguity = ignore]]
+declare [[syntax_ambiguity_warning = false]]
text {*