... {(a, 0.9), (a, 1. 5), (b, 0.75), (b, 1. 5)} x3 1 2 0 x4 1. 4 1 1 x4 1 1 1 x5 1. 4 2 0 x5 1 2 0 x6 1. 6 3 1 x6 2 2 1 x7 1. 3 1 1 (a) (b) x7 1 1 1 19 Tập những giá trị có thể ... x3) 0 0 1 0 0 1 1 1 (x4, x5) 0 0 0 0 0 1 0 1 (x6, x2) 0 1 1 1 1 1 1 1 (x6, x3) 0 0 1 1 0 0 0 1 (x6, x5) 0 0 0 1 0 0 1 1 (x7, x2) 0 1 0 0 1 0 0 1 (x7, x3) ... ap 1 ap2 ap3 ap4 bp 1 bp2 bp3 D* (x 1 , x2) 1 0 0 0 1 1 0 1 (x 1 , x3) 1 1 0 0 0 0 1 1 (x 1 , x5) 1 1 1 0 0 0 0 1 (x4, x2) 0 1 1 0 1 0 0 1 (x4,...