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狒狒锣既宝点地50题[求助]
Joseph: my encyclopedia says that the mahematician Pierre de Fermat died in 1665 without leaving behind any wirtten prrof for a theorem that he claimed nontheless to have proved. Probably this alleged theorem simply can not be proved, since-as the article points out- no one esle has been able to prove it.
therefore it is likely that Fermat was either lying or esle mistaken when he made his claim.
Laura: your encyclopedia is out of date. recently, someone has in fact proved Fermat"s theorem. and since the theorem is provable, your claim-that Fermat was lying or mistaken-clearly is wrong.
which one of the follwing most accurately describes a reasoning error in Laura's argument?
a) it purports to establish its conclusion by making a claim that, if true, would actually contradict that conclusion.
b)it mistakenly assumes that quality of a person's character can legitimately be taken on guarantee the accuracy of the claim that person has made.
c)it mistakes somethings that is necessary for its conclusion to follow for something that ensure that conclusion follows.
d)...
e)...
why the answer is C, i choose A?? |
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