AI MCQ #355: ‘α |= β ‘(to mean that the sentence α entails the sentence β) if and only if, in…

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Q355. ‘α |= β ‘(to mean that the sentence α entails the sentence β) if and only if, in every model in which α is _____ β is also _____

  • a) True, true
  • b) True, false
  • c) False, true
  • d) False, false

✅ Correct Answer: A) True, true

Explanation: Refer the definition of law of entailment.