Help me crack a question

ca3ltoys · 发表于 2003-10-21 00:48:00

One question from <>
They said the following argument are circular, I didn't understand it, help me to analyze it. Thanks

Beethoven was the greatest composer of all time, because he wrote the greatest music of any composer, and the one who composes the greatest music must be the greatest composer.

A typical GMAT stem and correct answer are:
(\/) it assumes what it hopes to prove.

cranberry · 发表于 2003-10-21 20:01:00

结论是老贝是最伟大的，给出的理由是他写出了最伟大的作品，而写出最伟大作品的就是最伟大的作曲家。我们如果把写出最伟大作品的就是最伟大的作曲家当作前提，那么文章就应该证明老贝的作品是最伟大的。而它没有证明。而是把要证明的东西当作论据来使用了。

ca3ltoys · 发表于 2003-10-22 00:47:00

Daxia, please tell me the difference between the explanation above and below
I know it's a circular reason fallacy as some books say, but don't know what it exactly mean.

David is the tallest one in his classroom, all of his classmates are taller than Jack, so David is taller than Jack.

Thanks.

miejue · 发表于 2003-10-22 10:39:00

以下是引用ca3ltoys在2003-10-22 0:47:00的发言：
David is the tallest one in his classroom, all of his classmates are taller than Jack, so David is taller than Jack.
Thanks.

I think this reasoning is correct. Does any book regard it as fallacy?

cranberry · 发表于 2003-10-22 18:23:00

我想我说的不清楚，更明确的思路是，不能把“写出最伟大作品的作曲家就是最伟大的作曲家”当作是前提，而是当作文章使用的一个论据，这样作者不过是把他想证明的结论用另一种方式表述出来，而且这个文件和你举出的关于事实的例子是不同的，因为其评价的标准不是客观的，不能当作前提来assume。

ca3ltoys · 发表于 2003-10-23 03:01:00

then what's the key to crack these kinds of question? focus on the assumption , whether it's objective?or something else? sorry for my tough head

cranberry · 发表于 2003-10-23 18:29:00

我想不是这样，因为此题把语序变化，将是没有错误的。写了最伟大作品的人就是最伟大的音乐家，贝多芬写了最伟大的作品，所以贝多芬是...，这是完整的三段论，应该没有错误。但此题中，前提不存在。

ca3ltoys · 发表于 2003-10-24 02:29:00

Why did you say the premise didn't exist? As the argument says"because (1)he wrote the greatest music of any composer, and(2) the one who composes the greatest music must be the greatest composer, (1) and (2) are premises. thanks.

cranberry · 发表于 2003-10-24 21:13:00

the latter presentation "and the one who..."should be taken as a deduction from the the first sentence (the conclusion actually) and the former presentation "because he wrote the greatest music of any composer",so the author made a circular argument

mindfree · 发表于 2003-10-24 21:45:00

I do not think it is circular, which typical reads like "Beethoven was the greatest composer of all time, because he wrote the greatest music of any composer, and because he was the greatest composer he must have composed the greatest music."

So it is like A-->B, then B-->A

This argument is correct to me: A-->B because A-->B.

Help me crack a question

Help me crack a question

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