diff -r 60b31a24f1a6 -r efb799c5ed3c doc-src/Tutorial/Misc/exhaust.ML
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc-src/Tutorial/Misc/exhaust.ML	Wed Aug 26 17:27:27 1998 +0200
@@ -0,0 +1,2 @@
+Goal "(case xs of [] => [] | y#ys => xs) = xs";
+by(exhaust_tac "xs" 1);