diff -r 60b31a24f1a6 -r efb799c5ed3c doc-src/Tutorial/Misc/Sep2.thy
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc-src/Tutorial/Misc/Sep2.thy	Wed Aug 26 17:27:27 1998 +0200
@@ -0,0 +1,6 @@
+Sep2 = List +
+consts sep :: "'a * 'a list => 'a list"
+recdef sep "measure (%(a,xs). length xs)"
+    "sep(a, x#y#zs) = x # a # sep(a,y#zs)"
+    "sep(a, xs)     = xs"
+end