doc-src/Tutorial/ToyList/lemma1
author nipkow
Mon, 08 Jul 2002 08:20:21 +0200
changeset 13307 cf076cdcfbf3
parent 5377 efb799c5ed3c
permissions -rw-r--r--
*** empty log message ***

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