Function in Sum of Minterms.
Sum of Minterms or SOM is an equivalent statement of Sum of Standard products.
Any boolean function can be represented in SOM by following a 2 step approach discussed below.
Step1: Represent the minterms for a function by decimal 1 in column 4 of table below.
Refer minterms from here
Step2: Add (or take binary OR) all the minterms in column 5 of table to represent the function.
Truth Table of three variable example below.
solve minterms for rows 4 and 5 that ae not valid in this function? Its x'yz and xy'z'.