4-4 Boolean Analysis of Logic Circuits 4-7 Boolean Expressions and Truth Table Determining logic expressions from a truth table 1) List the binary values of the input variables for which the output is I (2)Convert each binary value to the corresponding product term(积的形式) by replacing each I with the corresponding variable and each o with the complement B3) Get the logic expression by summing all the combinations7 4-4 Boolean Analysis of Logic Circuits 4-7 Boolean Expressions and Truth Table  Determining logic expressions from a truth table (1) List the binary values of the input variables for which the output is 1. (2) Convert each binary value to the corresponding product term （积的形式） by replacing each 1 with the corresponding variable and each 0 with the complement. (3) Get the logic expression by summing all the combinations