LSAT新题疑惑中：LSAT-0212-2-21

睡熊

Cognitive psychologist: The majority of skilled artists are very creative people, and all people who are very creative are also good at abstract reasoning. However, not all skilled artists are famous, it follows that some people who are good at abstract reasoning are famous.

The cognitive psychologist's conclusion follows logically if which one of the following is assumed?
(A) Most skilled artists are good at abstract reasoning.
(B) Most people who are very creative are skilled artists.
(C) Some skilled artists are not famous.
(D) All people who are good at abstract reasoning are very creative.
(E) Most skilled artists are famous.

觉得所有的答案都不确定。先不写标准答案了。NN们指教指教行不？谢谢！

mindfree

E.

睡熊

正是。谢谢mindfree。能不能指教一下具体的思路吗？

weiyu

I will try to explain:

E eliminates the possibility that only skilled artists not very creative are famous because such group skilled people only consist a minor part of skille artists.

mindfree

Very simple example to illustrate:

Most of people in team A are from China. Most of the team A people are smart (like E). Therefore some people from China are smart.

Without the second condition, or if we change it to some of the team A people are smart, we can get the same conclusion because it is possible that smart people and people from China are exclusively two distinct group. When there are two "most", there has to be some overlap.

睡熊

weiyu, mindfree, thanks a lot!

What troubled me I thought was without E the conclusion still hold, now I got it. When ~E, we at most have "some people who are good at abstract reasoning CAN BE famous." to be held, but not the conclusion above.

Thanks again.

mindfree

I am afraid that "some people who are good at abstract reasoning are famous" is the conclusion of the argument. So I am not sure what you mean by "but not the conclusion above"

jnlvo

以下是引用睡熊在2004-5-5 9:38:00的发言：

weiyu, mindfree, thanks a lot!

What troubled me I thought was without E the conclusion still hold, now I got it. When ~E, we at most have "some people who are good at abstract reasoning CAN BE famous." to be held, but not the conclusion above.

Thanks again.

个人认为E中Most和some的效果是一样的，如果取反all skilled artists are not famous. 这样肯定推不出结论it follows that some people who are good at abstract reasoning are famous.

jnlvo

实际上这题我认为就是个桥接关系的assumption. 把头The majority of skilled artists 和尾are famous.连在一起就构成答案。

睡熊

thanks mindfree: "the conclusion above" I mentioned is :"some people who are good at abstract reasoning are famous". I was trying to negate E as the assumption to test whether the conclusion still hold. I was wrong before as I thought even negate E (~E), the conclusion "some people who are good at abstract reasoning are famous" still true, now I understand when we have "most of the skilled artists are NOT famous", the ~E, the conclusion "some people who are good at abstract reasoning are famous" can not be held any more, we at most can say "some people who are good at abstract reasoning CAN BE famous". Is this approach correct, thank you for coaching...

jnlvo, appreciate your comment.

个人认为E中Most和some的效果是一样的，如果取反all skilled artists are not famous. 这样肯定推不出结论it follows that some people who are good at abstract reasoning are famous.

I think if it is a "some", as in "some of the skilled artists are famous", then when negated, it turns out to be "None of the skilled artists are famous", instead of "some skilled artists are not famous". But with "most" as in "Most of the artists are famous", when negated, it turns out to be "Most artists are Not famous". What do you think?