The P-table and its application to second and third-order simplification of Boolean functions

A technique has been developed in this article for obtaining the ‘ product of sum ’ expression from the ‘ sum of product ’ expression of a Boolean function. In this technique, first a tabular representation is made with the product terms and the variables present in the function specified in the ‘ sum of product ’ form and then appropriate rows of the table are combined to give different sum terms. The idea of the technique has also been extended for obtaining the third-order minimal expression of a Boolean function.