src/HOL/Library/Old_Datatype.thy
changeset 69605 a96320074298
parent 67613 ce654b0e6d69
--- a/src/HOL/Library/Old_Datatype.thy	Sun Jan 06 13:44:33 2019 +0100
+++ b/src/HOL/Library/Old_Datatype.thy	Sun Jan 06 15:04:34 2019 +0100
@@ -508,6 +508,6 @@
 hide_type (open) node item
 hide_const (open) Push Node Atom Leaf Numb Lim Split Case
 
-ML_file "~~/src/HOL/Tools/Old_Datatype/old_datatype.ML"
+ML_file \<open>~~/src/HOL/Tools/Old_Datatype/old_datatype.ML\<close>
 
 end