by using the generar of the match capansion

4.25 Four chairs are placed in a row:

BCD

Each chair may be occupied (1) or empty (0). Give the minterm and maxterm

expansion for each logic function described.

(a) F(A, B, C, D) is 1 iff there are no adjacent empty chairs.

(b) G(A, B, C, D) is 1 iff the chairs on the ends are both empty.

(c) H(A, B, C, D) is 1 iff at least three chairs are full.

(d) J(A, B, C, D) is 1 iff there are more people sitting in the left two chairs than in

the right two chairs.