doc-src/Tutorial/ToyList/lemma3
author kleing
Mon, 14 Jul 2003 14:44:06 +0200
changeset 14110 c45c94fa16f4
parent 5377 efb799c5ed3c
permissions -rw-r--r--
use Library.Some/None instead of just Some/None in generated quickcheck code

Goal "(xs @ ys) @ zs = xs @ (ys @ zs)";
by(induct_tac "xs" 1);
by(Auto_tac);