(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

(x+y)(x'z' + z)(y'' + x'z') = x'y

2. Relevant equations

http://www.d.umn.edu/~snorr/ece1315f2/BOOLLAWP.htm" [Broken]

3. The attempt at a solution

- (x+y)(x'z' + z)(y''(x'+z') -- DeMorgan's Theorem
- (x+y)(x'z' + z)(y(x'+z')) -- Involution Law
- (x+y)(z+x')(y(x'+z'))

That's all I've gotten so far. I'm not sure how to get rid of (x+y) term. I was also thinking of using the distributive law on (y(x'+z'), but I couldn't find any theorem or postulate for it. Any help is greatly appreciated!

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# Homework Help: Boolean Expression Proofs

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