panamaln91
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Vinny Gambini
Vinny Gambini
 
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Unemployed artists

by panamaln91 Mon Jul 21, 2014 11:40 pm

Why is answer A correct?

All unemployed artists are sympathetic to social justice. And no employed artists are interested in the prospect of great personal fame.

If the claims made above are true, then which one of the following must be true?

A) If there are artists interested in the prospect of great personal fame, they are sympathetic to social justice.

B) All artists uninterested in the prospect of great personal fame are sympathetic to social justice.

C) Every unemployed artist is interested in the prospect of great personal fame

D) If an artist is sympathetic to social justice, that artist is unemployed

E) All artists are either sympathetic to social justice or are interested in the prospect of great personal fame.
 
christine.defenbaugh
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Atticus Finch
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Re: Unemployed artists

by christine.defenbaugh Wed Jul 30, 2014 2:00 pm

Thanks for posting, panamaln91!

This is a classic conditional logic based Inference question, so let's get right into diagramming the bits of info from the stimulus!

The entire stimulus is about artists (and so is each answer choice), and what characteristics they have, so we'll leave that out of the shorthand for the moment.

The stimulus tells us:
    1) not employed --> social justice
    2) employed --> not fame


While these two conditionals may not look connectable at first glance, if we contrapose the second statement, we'll get: fame --> not employed.

Now we can connect them!
    fame --> not employed --> social justice

That link is precisely what (A) gives us: fame --> social justice!

Note that we could have had the contrapositive of the link be the correct answer as well: not social justice --> employed --> not fame

Now, for the wrong answers:
    (B) not fame --> social justice There's no way to make that link!
    (C) not employed --> fame Illegal reversal of statement #2!
    (D) social justice --> not employed Illegal reversal of statement #1!
    (E) Harder to diagram, but it's essentially not fame --> social justice and not social justice --> fame. But there's nothing preventing some artists out there from being neither. Only the unemployed artists have to be into social justice. The employed ones could be into neither fame nor social justice.

    Being fast on your feet with conditional logic connections is the name of the game for this question!

    I hope this helps clear things up a bit!