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doc-src/Tutorial/Misc/GCD.ML
author obua
Sun, 09 May 2004 23:04:36 +0200
changeset 14722 8e739a6eaf11
parent 5377 efb799c5ed3c
permissions -rw-r--r--
replaced apply-style proof for instance Multiset :: plus_ac0 by recommended Isar proof style
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Goal "gcd(m,0) = m";
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by(resolve_tac [trans] 1);
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by(resolve_tac gcd.rules 1);
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by(Simp_tac 1);
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qed "gcd_0";
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Addsimps [gcd_0];
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Goal "!!n. n ~= 0 ==> gcd(m,n) = gcd(n, m mod n)";













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by(resolve_tac [trans] 1);













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by(resolve_tac gcd.rules 1);













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by(Asm_simp_tac 1);













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qed "gcd_not_0";













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Addsimps [gcd_not_0];













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