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doc-src/Tutorial/ToyList/lemma3
author
kleing
Tue, 20 May 2003 11:52:42 +0200
changeset 14040
8a2c8f762837
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
be less verbose about simplification depth
Goal "(xs @ ys) @ zs = xs @ (ys @ zs)";
by(induct_tac "xs" 1);
by(Auto_tac);