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PS - From POWERPREP - wiered notations

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PS - From POWERPREP - wiered notations [#permalink] New post 26 Nov 2003, 00:31
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Prob Sol. Set 1 Question # 7

u K t, r K q, s K t, t K r
what is true
u K s
s K q
u K r

WHAT IS THIS NOTATION - I AM TOTALLY LOST - IS THIS HOW IT IS IN THE EXAM.

Even after looking at the soln. I cant figure out what it is.


Prob Sol. Set 2 Question 3
x = " 1, "(xf+xd+xs+x)=

Whats the deal with ", I am assumingit means - (minus). Explaination is vague, any help.

Thanks
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 [#permalink] New post 26 Nov 2003, 00:54
I think we need to create a chain

If uKt and tKr, then uKr
  [#permalink] 26 Nov 2003, 00:54
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PS - From POWERPREP - wiered notations

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