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doc-src/Tutorial/Misc/NatSum.ML
author paulson
Fri, 11 Dec 1998 10:41:53 +0100
changeset 6024 cb87f103d114
parent 5377 efb799c5ed3c
permissions -rw-r--r--
new Close_locale synatx
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