Let P and Q be statements, then P<->Q is logically equivalent to __________
A. P<->~Q
B. ~P<->Q
C. ~P<->~Q
D. None of the mentioned
Answer:C
Let P and Q be statements, then P<->Q is logically equivalent to __________
A. P<->~Q B. ~P<->Q C. ~P<->~Q D. None of the mentioned
Explanation: Both of them have same truth table, Hence they are equal.