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doc-src/Tutorial/Misc/NatSum.ML
author nipkow
Thu, 06 May 1999 11:48:09 +0200
changeset 6606 94b638b3827c
parent 5377 efb799c5ed3c
permissions -rw-r--r--
Refs.
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Goal "sum n + sum n = n*(Suc n)";
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by(induct_tac "n" 1);
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by(Auto_tac);
isabelle