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doc-src/Tutorial/Misc/NatSum.ML
author paulson
Mon, 24 Nov 2003 15:33:07 +0100
changeset 14266 08b34c902618
parent 5377 efb799c5ed3c
permissions -rw-r--r--
conversion of integers to use Ring_and_Field; new lemmas for Ring_and_Field
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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