doc-src/Tutorial/ToyList/lemma1
author wenzelm
Fri, 06 Oct 2000 17:35:58 +0200
changeset 10168 50be659d4222
parent 5377 efb799c5ed3c
permissions -rw-r--r--
final tuning;

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