doc-src/Tutorial/ToyList/lemma3
author wenzelm
Fri, 04 Jun 1999 19:51:26 +0200
changeset 6768 26d64339c25a
parent 5377 efb799c5ed3c
permissions -rw-r--r--
added dest_main_statement;

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