Discrete Structure (DS) MCQs with answers Page - 6

Here, you will find a collection of MCQ questions on Discrete Structure (DS). Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. A proof that begins by asserting a claim and proceeds to show that the claim cannot be true is by

  • (A) Induction
  • (B) Contradiction
  • (C) prevarication
  • (D) construction

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Q. A proof that proceeds by showing the existence of something desired is by

  • (A) Induction
  • (B) Contradiction
  • (C) prevarication
  • (D) construction

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Q. Proofs by contradiction

  • (A) dismiss certain rules of logic
  • (B) misrepresent facts
  • (C) start by assuming the opposite of what is to be proven
  • (D) end by rejecting what is to be proven

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Q. A validity-maintaining procedure for deriving sentences in logic from other sentences is

  • (A) Proof
  • (B) Theorem
  • (C) Inference rule
  • (D) inference chain

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Q. A validity-maintaining procedure for deriving sentences in logic from other sentences is a

  • (A) Proof
  • (B) Theorem
  • (C) Inference rule
  • (D) inference chain

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