doc-src/Tutorial/ToyList/lemma1
author wenzelm
Sun, 07 Jan 2001 22:39:28 +0100
changeset 10823 88cb1547d952
parent 5377 efb799c5ed3c
permissions -rw-r--r--
updated;

Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";