Product of Sums form, or

POS form, is a method of writing

logical equations. In this

form, the equation consists of multiple

terms which are all

AND'd together. In turn, each of these terms consists of one or more

variables which are all

OR'd together. Example:

_ _ _ _ _ _
F = (A + B + C) · (A + B + C) · (A + B + C) · (A + B + C) · (A + B + C)

Here each of the

terms are within

parenthesis, and consist of

variables

OR'd together. Each of the terms, then, is

AND'd together.

See also sum of products.