1) Дан фрагмент таблицы истинности выражения F.
|
x1 |
x2 |
x3 |
x4 |
x5 |
x6 |
x7 |
F |
|
0 |
1 |
0 |
1 |
1 |
1 |
0 |
0 |
|
1 |
1 |
0 |
1 |
0 |
0 |
1 |
0 |
|
0 |
1 |
0 |
1 |
0 |
1 |
1 |
0 |
Какое выражение соответствует F?
1)
(x2 and x3 or x4 and x5 or x6 and x7)→
x1
2)
(x1 and x3 or x4 and x5 or x6 and x7)→
x2
3)
(x1 and x2 or x4 and x5 or x6 and x7)→
x3
4)
(x1 and x2 or x3 and x5 or x6 and x7)→
x4