Standard Forms: Definitions
A literal is a variable or the complement of a variable. (e.g. X, Y, X')
A product term is a single literal or the logical product of two or more literals. (e.g. X•Y, W•X'•Z, X)
A sum term is a single literal or the logical sum of two or more literals. (e.g. X+Y, X, W+X'+Y)
A sum-of-products expression is a logical sum of product terms.
A product-of-sums expression is a logical product of sum terms.
A normal term is a product or sum term in which no variable appears more than once.
An n-variable minterm is a normal product term with n literals.
An n-variable maxterm is a normal sum term with n literals.