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Philosophy · Q94

Modern Symbolic logic

Graduate and Post Graduate · Philosophy · question 94

Q94

Set down the relation between universal and existential quantification by matching the List I with List II and select the appropriate answer: List-I List-II a. [(X) ϕX] 1. ≡ [∼ (X) ϕX] b. [(∃x) ϕX] 2. ≡ [∼ (∃x) ϕX] c. [(X) ∼ ϕX] 3. ≡ [∼ (X) ∼ ϕX] d. [(∃x) ∼ ϕX] 4. ≡ [∼ (∃x) ∼ ϕX]

Set down the relation between universal and existential quantification by matching the List I with List II and select the appropriate answer:
List-I List-II
a. [(X) ϕX] 1. ≡ [∼ (X) ϕX]
b. [(∃x) ϕX] 2. ≡ [∼ (∃x) ϕX]
c. [(X) ∼ ϕX] 3. ≡ [∼ (X) ∼ ϕX]
d. [(∃x) ∼ ϕX] 4. ≡ [∼ (∃x) ∼ ϕX]
A.
a-1, b-2, c-3, d-4
B.
a-4, b-3, c-2, d-1
Answer
C.
a-2, b-4, c-1, d-3
D.
a-3, b-1, c-4, d-2

Answer: Option B

Solution

Answer: Option B
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