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doc-src/Tutorial/Misc/NatSum.ML
author nipkow
Wed, 04 Aug 2004 19:09:58 +0200
changeset 15109 bba563cdd997
parent 5377 efb799c5ed3c
permissions -rw-r--r--
proof mod
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