61. | Is the below statement true for the domain of positive integers ∀p ∃q ( p + q = 7) ? |
Discuss |
Answer: (a).Yes
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62. | Which of the following is a sound rule of inference? |
Discuss |
Answer: (b).p → (p ∨ q)
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63. | ∀x ∃ y P(x,y) ≡ ∃ y ∀ x P(x,y) |
Discuss |
Answer: (b).No
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