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.

Summary
The author concludes that some people who are good at abstract reasoning are famous.
This is based on the following premises:
Most skilled artists are very creative.
All people who are very creative are also good at abstract reasoning.
(The part about “not all” skilled artists being famous isn’t being used as a premise, because it doesn’t help prove a claim about some people being famous.)

Missing Connection
We know from connecting the two premises that most skilled artists are good at abstract reasoning. How can we get from this to the conclusion that some people good at abstract reasoning are famous?
Notice that “famous” is a new concept in the conclusion. We want to add something that will guarantee at least some of the skilled artists who are good at abstract reasoning are famous. For example:
Most skilled artists are famous.
Everyone who is very creative is famous.

A
Most skilled artists are good at abstract reasoning.
(A) doesn’t tell us anything about who is famous. Since we don’t have any premise that establishes who is famous, an answer that doesn’t tell us who is famous cannot make the argument valid.
B
Most people who are very creative are skilled artists.
(B) doesn’t tell us anything about who is famous. Since we don’t have any premise that establishes who is famous, an answer that doesn’t tell us who is famous cannot make the argument valid.
C
Some skilled artists are not famous.
Learning that some skilled artists are NOT famous doesn’t help me prove who IS famous.
D
All people who are good at abstract reasoning are very creative.
(D) doesn’t tell us anything about who is famous. Since we don’t have any premise that establishes who is famous, an answer that doesn’t tell us who is famous cannot make the argument valid.
E
Most skilled artists are famous.
If most skilled artists are famous, and we know from the premises that most skilled artists are good at abstract reasoning, that establishes some people who are good at abstract reasoning are famous.

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Politician: It is wrong for the government to restrict the liberty of individuals, except perhaps in those cases when to fail to do so would allow individuals to cause harm. Yet, to publish something is a liberty, and to offend is not to cause harm.

Summary

If failing to restrict a liberty would not cause harm, then it’s wrong for the government to restrict that liberty. (Contrapositive: if it’s not wrong for the government to restrict a liberty, then it must be that failing to restrict that liberty would cause harm.)

To offend isn’t something that causes harm.

Publishing something is considered a liberty.

Very Strongly Supported Conclusions

Failing to restrict any liberty (such as publishing something) that just involves offending people wouldn’t cause harm.

So it’s wrong for the government to restrict any liberty (such as publishing something) that just involves offending people.

A
It is not right for the government to restrict the publication of literature that is only offensive.

Very strongly supported. Publication is a liberty. So it’s wrong to restrict a publication if failing to restrict it would cause no harm. Offending is something that causes no harm. Thus it’s wrong to restrict a publication if its only issue is that it’s offensive.

B
It is not wrong for the government to restrict individuals’ liberty when failing to do so would allow individuals to cause harm.

Unsupported. We can only conclude when something is wrong, not when it’s not wrong. (B) makes a sufficiency-necessity swap. The stimulus actually tells us that when it’s not wrong for the government to restrict a liberty, then failing to restrict that liberty must cause harm.

C
It is offensive for the government to restrict the liberty of individuals to publish, but it is not harmful.

Unsupported. The stimulus doesn’t suggest what makes something offensive.

D
It is not wrong for individuals to publish literature that is offensive.

Unsupported. We can only conclude when something is wrong, not when it’s not wrong. Also, the stimulus doesn’t suggest what makes something wrong or not wrong for individuals. It only discusses what makes something wrong for the government.

E
It is not right for the government to restrict the publication of literature that does not cause serious harm.

Unsupported. The exception in the stimulus is triggered by any harm, not just serious harm. It’s possible for a publication to not cause serious harm while still causing some harm. So this publication might still trigger the exception, meaning the restriction might be acceptable.


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