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doc-src/Tutorial/ToyList/lemma3
author
nipkow
Fri, 10 Sep 2004 00:19:15 +0200
changeset 15195
197e00ce3f20
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
new forward deduction capability for simplifier
Goal "(xs @ ys) @ zs = xs @ (ys @ zs)";
by(induct_tac "xs" 1);
by(Auto_tac);