doc-src/Tutorial/ToyList/lemma3
author wenzelm
Mon, 10 May 1999 15:17:14 +0200
changeset 6619 010dfaf75064
parent 5377 efb799c5ed3c
permissions -rw-r--r--
fixed URLs;

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