doc-src/Tutorial/Misc/NatSum.ML
author nipkow
Sat, 17 Apr 2004 14:51:21 +0200
changeset 14615 603f08285c65
parent 5377 efb799c5ed3c
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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);