doc-src/Tutorial/ToyList/lemma1
author wenzelm
Mon, 10 May 1999 15:17:14 +0200
changeset 6619 010dfaf75064
parent 5377 efb799c5ed3c
permissions -rw-r--r--
fixed URLs;

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