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doc-src/Tutorial/Misc/NatSum.ML
author wenzelm
Mon, 23 Oct 2000 22:10:36 +0200
changeset 10309 a7f961fb62c6
parent 5377 efb799c5ed3c
permissions -rw-r--r--
intro_classes by default;
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