Does "depends on" introduce the necessary condition?

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jesuis
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Joined: Sat Jul 25, 2009 4:56 am

Does "depends on" introduce the necessary condition?

Postby jesuis » Tue Sep 21, 2010 8:21 pm

In thinking about this question to write this post, I've answered my own question, but I'll put it out here for others who may be interested...

I came across this in PT24 (Section 2, Question 23), where the stimulus essentially states that X depends on Y. At first glance, I thought that Y -> X, but after thinking about it, it's obvious that X -> Y, since X depends on something (Y) happening in order to be X. In other words, X can't just be X, it requires (depends on) Y.

dakatz
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Joined: Sat Mar 29, 2008 4:19 pm

Re: Does "depends on" introduce the necessary condition?

Postby dakatz » Tue Sep 21, 2010 8:25 pm

If X depends on Y, then Y is the necessary condition. You can't have X without Y because (obviously), X depends on Y.

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jesuis
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Joined: Sat Jul 25, 2009 4:56 am

Re: Does "depends on" introduce the necessary condition?

Postby jesuis » Mon Sep 27, 2010 11:33 am

indeed. :wink:




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