doc-src/Tutorial/ToyList/lemma3
author wenzelm
Thu, 19 Oct 2000 21:21:20 +0200
changeset 10274 130ff5eb2b80
parent 5377 efb799c5ed3c
permissions -rw-r--r--
added Tools/induct_attrib.ML;

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