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huh? Is the riddle complete?
|dw:1351174228233:dw|Soo that's \(A - (A \cap B \cap C)\) right? :\
hmm... i don't think so...is it?
how can \[A - (B \cap C) = A - (A \cap B \cap C)\] doesn't sound right....
A part of \(B \cap C\) is not in A. So I don't know if that's right. I'm not even sure if the question even has an answer...
oh it does
and it involves a lot of thinking and set theory
o.o i see..
wow there aren't too many details & i'm just thinking about all the possibilities... :/|dw:1351175508673:dw||dw:1351175580930:dw| And it goes on & on & on. The answer can be anything....can't it?
i don't even know what your drawings mean....
They are Venn diagrams...the first one showing B as a subset of A & C only sharing a small part with B and A (B intersection C). The second one is one example(possibility) where B & C are subsets of A....
whoever said anything about subsets?
That's what I'm trying to say. you're question doesn't say anything about what kind of sets A B & C are..so I have to consider all thhe possibilities.
not really...note that i said sets
i never said anything about subsets
so you can't assume
\(-_-)/ i give up.
you actually just use the formula for set difference \[A - B \implies A \cap B'\]
So it's a null set?
I'm sorry I don't know :\
\[A \cap (B \cap C)' \]