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I'm new at learning boolean algebra and understand the basic laws. But now I'm trying to proof:

$x'z+ xyz + xy'z = z$

Can someone help me with this please ?

Thanks in advance.

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    What is this from? What are x' and y' ? Factor out a z from each term on the left and you have reduced your problem to proving x' + xy + xy' =1.2010-08-13
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    This is from the boolean algebra. x' and y' are the opposite of x & y. + = OR . = AND2010-08-13

3 Answers 3