|
[Y] |
C D |
||||
|
00 |
01 |
11 |
10 |
||
|
A B |
00 |
0 |
0 |
0 |
0 |
|
01 |
1 |
1 |
0 |
0 |
|
|
11 |
x |
x |
x |
x |
|
|
10 |
1 |
1 |
x |
x |
|
[Y] |
C D |
||||
|
00 |
01 |
11 |
10 |
||
|
A B |
00 |
0 |
0 |
0 |
0 |
|
01 |
1 |
1 |
0 |
0 |
|
|
11 |
(1) |
(1) |
(0) |
(0) |
|
|
10 |
1 |
1 |
(0) |
(0) |
Y= (A+B)C
"0","1"を適切に使うと
論理式が簡単になる
xは
すべて"1"とは限らない