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doc-src/Tutorial/ToyList/lemma3
author wenzelm
Tue, 18 Jul 2000 14:52:30 +0200
changeset 9382 7cea1cb9703e
parent 5377 efb799c5ed3c
permissions -rw-r--r--
replaced arities by instance;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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Goal "(xs @ ys) @ zs = xs @ (ys @ zs)";
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by(induct_tac "xs" 1);
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by(Auto_tac);
isabelle