doc-src/Tutorial/ToyList/lemma3
author nipkow
Wed, 13 Jan 1999 08:41:59 +0100
changeset 6110 15c2b571225b
parent 5377 efb799c5ed3c
permissions -rw-r--r--
Simplified interface.

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