Boolean Symbols and Expressions

We write:

Logic Gate	Boolean Expression
NOT x	x'
x AND y	x$\cdot$y (or: xy)
x OR y	x + y
x XOR y	x ⊕ y
x NAND y	(xy)'
x NOR y	(x + y)'
x XNOR y	(x ⊕ y)'

We can combine these expressions to create more complex logic expressions.