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Question
Choose the correct alternative:
Which of the following is always true?
Options
(p → q) ≡ ∼ q → ∼ p
∼ (p ∨ q) ≡ ∼ p ∨ ∼ q
∼ (p → q) ≡ p ∧ ∼ q
∼ (p ∨ q) ≡ ∼ p ∧ ∼ q
∼ (p → q) ≡ p ∧ ∼ q and ∼ (p ∨ q) ≡ ∼ p ∧ ∼ q
MCQ
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Solution
∼ (p → q) ≡ p ∧ ∼ q and ∼ (p ∨ q) ≡ ∼ p ∧ ∼ q
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