Use the laws of Boolean algebra to show that the identity (xy V x'y')' = x'y V xy' holds. Give all necessary steps and state explicitly which laws you are using. You may use de Morganís laws without deriving them yourself. I have no idea of how to even start or which of the laws to use. Please help!!!
Sorry but I don't understand why we apply the law to (xy)' and (x'y')' I don't know how to show that they equal each other through algebra, I did it through the table but using the laws I missed the lecture and don't have an idea of how to do it.
Oops. I mixed them up myself. I meant the 2nd law of De Morgan.
or if we put it the other way around:
The expression is actually the same as .
It is just a different notation.
Can you now apply the 2nd law of De Morgan to (xy)'?
And also to (x'y')'?