1,求(P V Q)R的析取范式与主析取范式
析取范式:
主析取范式:
真值表如下:
P | Q | R | P V Q | (P V Q)R |
0 | 0 | 0 | 0 | 1 |
0 | 0 | 1 |
0 | 1 |
0 | 1 | 0 | 1 | 0 |
0 | 1 | 1 | 1 | 1 |
1 | 0 | 0 | 1 | 0 |
1 | 0 | 1 | 1 | 1 |
1 | 1 | 0 | 1 | 0 |
1 | 1 | 1 | 1 | 1 |
1,求(P V Q)R的析取范式与主析取范式
析取范式:
主析取范式:
真值表如下:
P | Q | R | P V Q | (P V Q)R |
0 | 0 | 0 | 0 | 1 |
0 | 0 | 1 |
0 | 1 |
0 | 1 | 0 | 1 | 0 |
0 | 1 | 1 | 1 | 1 |
1 | 0 | 0 | 1 | 0 |
1 | 0 | 1 | 1 | 1 |
1 | 1 | 0 | 1 | 0 |
1 | 1 | 1 | 1 | 1 |