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ptest 39 sec 2 #21

Posted: Sun Aug 01, 2010 5:00 pm
by nStiver
Again, I am stuck on a question from this section. Anyway, can someone clarify for me why (E) is correct?

Thanks

Re: ptest 39 sec 2 #21

Posted: Sun Aug 01, 2010 7:58 pm
by nStiver
This is one of the harder "formal logic" questions I have seen, unless I am missing something very obvious.