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doc-src/Tutorial/ToyList/lemma3
author
wenzelm
Fri, 10 Nov 2000 19:20:17 +0100
changeset 10452
abeefb0a79ae
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
* added overloaded operations "inverse" and "divide" (infix "/");
Goal "(xs @ ys) @ zs = xs @ (ys @ zs)";
by(induct_tac "xs" 1);
by(Auto_tac);