The NOT expression is processed first. Then the expressions joined by AND are processed. Finally, the expressions joined by OR are processed. For a complete discussion of the rules for evaluating ...

operand something to be operated on. An operand can be a variable, a SAS function, or a constant. See Specifying an Operand. operator a symbol that requests a comparison, logical operation, or ...

We first extend Quine's method of eliminating the bound variables to first-order predicate logic with operation symbols ; then we give a device for eliminating also the free variables ; and finally we ...

Computers use electrical circuits which have two states – on or off. This can also be represented as 1 or 0 or True and False. Logic gates take an input of True or False and give an output of True or ...