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 Post subject: Advantage Strategy-Don't contradict yourself Q.13Posted: Sat May 28, 2011 11:13 pm

Joined: Wed Apr 27, 2011 8:54 pm
Posts: 2
I am not quite sure what it means.

Why does it say " if you are 100% sure that the first statement is giving you a yes answer to the question at hand, it would be impossiblt for the second statement to give a definitive answer of no."

For example, what if Q.13's question was

Is X>0?
(1) X=9
(2) /x/=-x

then, (1) is still 100% yes and (2) is no. both should be sufficient.
However, according to the text, it is impossible for (2) to be no.

thank you.

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 Post subject: Re: Advantage Strategy-Don't contradict yourself Q.13Posted: Sat Jun 04, 2011 9:41 am

Joined: Thu Feb 12, 2009 6:32 pm
Posts: 497
It would not be possible to have a problem with the statements that you described:

(1) X=9
(2) /x/=-x

from (2), x would have to be <=0 which is not possible if x = 9

The statements can not contradict each other. If one statement leads you to "yes", the other statement can't lead you to "no"

Veritas Help

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