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doc-src/Tutorial/Misc/NatSum.ML
author wenzelm
Tue, 29 Aug 2000 00:54:22 +0200
changeset 9712 e33422a2eb9c
parent 5377 efb799c5ed3c
permissions -rw-r--r--
updated cong stuff;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
5377
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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