aA switching equation defines the relationship between an output variable and a set of input variables The expression composed of logic variables and the three primitive operator [and, or, not F(A, B, C=AB+AB'C+A'BCA switching equation defines the relationship between an output variable and a set of input variables The expression composed of logic variables and the three primitive operator [and, or, not] F(A,B,C)=AB+AB’C’+A’BC