Multiple Choice
refer to the following formula:
∼(∀x) {(Ix • Jx) ⊃ [Kx ≡ (La • Lb) ]}
-Which is the main operator of the formula?
A) ∀x
B) ≡
C) ⊃
D) •
E) ∼
Correct Answer:

Verified
Correct Answer:
Verified
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