--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc-src/Tutorial/Misc/Chain.thy	Wed Aug 26 17:27:27 1998 +0200
@@ -0,0 +1,7 @@
+Chain = List +
+consts chain :: "('a => 'a => bool) * 'a list => bool"
+recdef chain "measure (%(r,xs). length xs)"
+    "chain(r, [])     = True"
+    "chain(r, [x])    = True"
+    "chain(r, x#y#zs) = (r x y & chain(r, y#zs))"
+end