I'd like to get some insight as to how to complete this: (X''+Y')+XYZ+X''Y''+Z'
Here are my steps:
(X''+Y')+XYZ+X''Y''+Z'
(X+Y')+XYZ+XY+Z'
(X+Y')+XYZ+Y+Z'
(X+Y')+XYZ+Z'
(XY')+XYZ+Z'
(XY')+XYZ+Z'
Each tick merk equates to an overbar which is used to indicate negation. A double tick as WC_demon has indicated is the same as a double negation and therefore it equates to the non-negated variable.
Thats what I figured. Whats the reasoning behind double negating a variable? I know its sometimes used when doing a NOR/NOR or NAND/NAND circuit like [F']' where F is some function (like ABC) but what about just one variable.