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doc-src/Tutorial/Misc/NatSum.ML
author berghofe
Fri, 31 Aug 2001 16:17:52 +0200
changeset 11523 9a658fe20107
parent 5377 efb799c5ed3c
permissions -rw-r--r--
Tuned function extend_lexicon.
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