(1) Is (B n A) n (A' u C') equivalent to B n [ A n (A' n C')] ?? If so , what law is that ? Distributive laws ? (2) why is A' n (A' u B) = A' ?? Can someone explain the above 2 questions to me .. Thanks a lot !!
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Originally Posted by thereddevils (2) why is A' n (A' u B) = A' ?? You should know $\displaystyle P \subseteq Q\; \Rightarrow \;P \cap Q = P$ Then observe that $\displaystyle A' \subseteq A' \cup B$.
Thanks Plato , i got it . How about (1) ?
Originally Posted by thereddevils How about (1) ? Let $\displaystyle X=B\cap A$ then $\displaystyle X\cap(A'\cup C')=(X\cap A')\cup (X\cap C')$
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