doc-src/Tutorial/ToyList/lemma1
author wenzelm
Thu, 19 Aug 1999 20:05:13 +0200
changeset 7297 c1eeeadbe80a
parent 5377 efb799c5ed3c
permissions -rw-r--r--
more;

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