¬ (p ↔ q) is logically equivalent to ________
A. q↔p
B. p↔¬q
C. ¬p↔¬q
D. ¬q↔¬p
Answer:B
¬ (p ↔ q) is logically equivalent to ________
A. q↔p B. p↔¬q C. ¬p↔¬q D. ¬q↔¬p
Explanation: ¬(p↔q)↔(p↔¬q) is tautology.