doc-src/Tutorial/ToyList/lemma1
author wenzelm
Tue, 19 Sep 2000 23:50:43 +0200
changeset 10029 b889474af53f
parent 5377 efb799c5ed3c
permissions -rw-r--r--
updated;

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