doc-src/Tutorial/ToyList/lemma1
author wenzelm
Wed, 09 Jun 2004 18:56:55 +0200
changeset 14912 88b9d9165452
parent 5377 efb799c5ed3c
permissions -rw-r--r--
added split_ext; removed drop_ext;

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