I'm trying to understand an example in the book. They're simplifying the following expression:
S=z \oplus (x \oplus y)[/tex]
I don't get how they go to this from the above
DeMorgan law: (x+y)' = x'y'
The Attempt at a Solution
By DeMorgan's law, negating that last term should give z(z'y'*xy)