doc-src/Tutorial/ToyList/lemma1
author nipkow
Mon, 30 Dec 2002 18:33:15 +0100
changeset 13769 a9f000d3ecae
parent 5377 efb799c5ed3c
permissions -rw-r--r--
*** empty log message ***

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