EvilZone
Encyclopedia Galactica => Science => : gh0st July 27, 2012, 05:19:11 AM
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we know that:
-all x are y
-z are x
-there are no w that are y
so we conclude:
a)z are w?
b)all y are w?
c)all z arent y?
d)x are w?
e)all z are not w?
so my answer was e) but the book says that the answer is d)
>:(
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actually your question is wrongly posted... there are 2 answers inferred from what you wrote.. c and e are both possible... d is not. afaik.
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actually your question is wrongly posted... there are 2 answers inferred from what you wrote.. c and e are both possible... d is not. afaik.
damn it you confuse me more!! :( i think the book has a mistake
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see, you said all x.... but not "all z " .. just that "z are x" so that does not mean that all z are x and hence y and consequently not w. z maybe x and some may be w.
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so my answer was e)
I would say the same.
c and e are both possible
How is c possible? Can't be.
see, you said all x.... but not "all z " .. just that "z are x" so that does not mean that all z are x
You use the universal quantifier if none is given (not the existential).
The task is just made this way for confusion.
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ty deque you are the best! <3