--- a/ProgTutorial/Package/Ind_Extensions.thy	Wed Oct 15 23:12:54 2014 +0100
+++ b/ProgTutorial/Package/Ind_Extensions.thy	Wed Oct 15 23:40:05 2014 +0100
@@ -207,10 +207,6 @@
 
 datatype foo = Foo nat
 
-local_setup{*Primrec.add_primrec [(@{binding "bar"}, NONE, NoSyn)] 
-    [(Attrib.empty_binding, @{term "\<And>x. bar (Foo x) = x"})]
-  #> snd *}
-
 local_setup{*Function.add_function [(@{binding "baz"}, NONE, NoSyn)] 
     [(Attrib.empty_binding, @{term "\<And>x. baz (Foo x) = x"})]
       conf pat_completeness_auto #> snd*}