Universal modulus matrix logic vi

This paper continues the series based on the use of matrices in the design of switching networks. To avoid redundancy within the series, all previous papers on matrix logic are considered as prerequisite, in particular, references 1 and 2. This paper establishes a general classification scheme for logical functions, as follows: 1. General symmetric functions, which are the sum of ordinary symmetric functions. 2. Trivial and redundant functions. 3. Universal functions, which are capable of performing any logical functions by appropriate iterations.