A | B | C | !B |!B ^ C | A \| !B ^ C
:-:|:-:|:-:|:-:|:------|-----------: 
0 | 0 | 0 |  1 |   1   | 1  | 
0 | 0 | 1 |  1 |   0   | 0  | 
0 | 1 | 0 |  0 |   0   | 0  | 
0 | 1 | 1 |  0 |   1   | 1  | 
1 | 0 | 0 |  1 |   1   | 1  | 
1 | 0 | 1 |  1 |   0   | 1  |
1 | 1 | 0 |  0 |   0   | 1  | 
1 | 1 | 1 |  0 |   1   | 1  |