Q112
Which one of the following is correct symbolisation of 'p if and only if q'?
A.
(p ⊃ q), (q ⊃ p)
B.
p ≡ q
AnswerC.
(p.q) ⊃ q
D.
(p.q) ∨ (∼ p. ∼ q)
Answer: Option B
Solution
Answer: Option B
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