doc-src/Tutorial/ToyList/lemma1
author nipkow
Mon, 12 Mar 2001 18:23:11 +0100
changeset 11202 f8da11ca4c6e
parent 5377 efb799c5ed3c
permissions -rw-r--r--
*** empty log message ***

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