doc-src/Tutorial/ToyList/lemma1
author webertj
Thu, 11 Mar 2004 13:34:13 +0100
changeset 14464 72ad5f2a3803
parent 5377 efb799c5ed3c
permissions -rw-r--r--
refute

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