
diff -r 15176172701e -r e85c42f4f30a src/HOL/Basic_BNF_LFPs.thy
--- a/src/HOL/Basic_BNF_LFPs.thy	Wed Feb 17 17:08:03 2016 +0100
+++ b/src/HOL/Basic_BNF_LFPs.thy	Wed Feb 17 17:08:36 2016 +0100
@@ -97,7 +97,7 @@
 
 ML_file "~~/src/HOL/Tools/Old_Datatype/old_size.ML"
 
-lemma size_bool[code]: "size (b::bool) = 0"
+lemma size_bool[code]: "size (b :: bool) = 0"
   by (cases b) auto
 
 declare prod.size[no_atp]




