Computer Fundamentals - Section 4 Multiple Questions and Answers.




11.Logical expression ( A^ B) → ( C' ^ A) → ( A ≡ 1) is
A. Contradiction
B. Valid
C. Well-formed formula
D. All of these

12.Identify the valid conclusion from the premises Pv Q, Q → R, P → M, ˥M
A. P ^ (R v R)
B. P ^ (P ^ R)
C. R ^ (P v Q)
D. Q ^ (P v R)

13. Let a, b, c, d be propositions. Assume that the equivalence a ↔ (b v ˥b) and b ↔ c hold. Then truth value of the formula ( a ^ b) → ((a ^ c) v d) is always
A. True
B. False
C. Same as the truth value of a
D. Same as the truth value of b

14.Which of the following is a declarative statement?
A. It's right
B. He says
C. Two may not be an even integer
D. None of the above

15. P → (Q → R) is equivalent to
A. (P ^ Q) → R
B. (P v Q) → R
C. (P v Q) → ˥R
D. None of these

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