F(A,B,C,D)=∑m(15,13,10,6,4) 无关项∑d(8,7,5,2,1,0)
F(A,B,C,D)=[∑m(4,6)+∑d(5,7)]+ [∑m(13,15)+∑d(5,7)]+ [∑m(10)+ ∑d(0,2,8)]
=A’B+BD+B’D’
F(A,B,C,D)=∑m(15,13,10,6,4) 无关项∑d(8,7,5,2,1,0)
F(A,B,C,D)=[∑m(4,6)+∑d(5,7)]+ [∑m(13,15)+∑d(5,7)]+ [∑m(10)+ ∑d(0,2,8)]
=A’B+BD+B’D’