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src/HOL/Metis_Examples/Binary_Tree.thy
changeset 58249 180f1b3508ed
parent 57512 cc97b347b301
child 58310 91ea607a34d8 
--- a/src/HOL/Metis_Examples/Binary_Tree.thy	Tue Sep 09 17:51:07 2014 +0200
+++ b/src/HOL/Metis_Examples/Binary_Tree.thy	Tue Sep 09 20:51:36 2014 +0200
@@ -13,7 +13,7 @@
 
 declare [[metis_new_skolem]]
 
-datatype 'a bt =
+datatype_new 'a bt =
     Lf
   | Br 'a  "'a bt"  "'a bt"
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