diff -r 60b31a24f1a6 -r efb799c5ed3c doc-src/Tutorial/ToyList/lemma1
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc-src/Tutorial/ToyList/lemma1	Wed Aug 26 17:27:27 1998 +0200
@@ -0,0 +1,1 @@
+Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";