A) T, F, F, T
B) T, F, F, F
C) F, F, F, F
D) T, T, T, T
Correct Answer: A
Solution :
[a]| p | q | \[p\to q\] | \[\tilde{\ }p\] | \[\tilde{\ }q\] | \[\tilde{\ }p\] \[\to \] \[\tilde{\ }q\] | \[(p\to q)\]\[\leftrightarrow \] \[(\tilde{\ }p\to \]\[\tilde{\ }q)\] |
| T | T | T | F | F | T | T |
| T | F | F | F | T | T | F |
| F | T | T | T | F | F | F |
| F | F | T | T | T | T | T |
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