momi m2 m3 m4 ms m6 m7 C Y=AB④C=(AB+AB)⊕C=(AB+AB)C+AB+AB·C ABC+ABC+ ABC+A BC=2m(1,2, 4, 7) (1)与非门 Y=ACB+ABC+BAC+ABC=ACB·ABC·ABC·BAC A 84 & (2)3线-8线译码器和与非门 Y=m1+m2+m4+m2=m1m2m4·m2=1·Y24Y