Let a, b, c, d be propositions. Assume that the equivalences a ↔ (b ∨ ¬b) and…
2003
Let a, b, c, d be propositions. Assume that the equivalences a ↔ (b ∨ ¬b) and b ↔ c hold. Then the truth value of the formula (a ∧ b) → (a ∧ c) ∨ d is always
- A.
True
- B.
False
- C.
Same as the truth value of b
- D.
Same as the truth value of d
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Correct answer: A
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