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Refer to the Following Formula: (∃X)[Mx • (∼Nc $\lor$

Question 124

Multiple Choice

refer to the following formula: (∃x) [Mx • (∼Nc $\lor$ ∼Ox) ] ≡ (Py • Pb)
-Which is the main operator of the formula?

A) (∃x)
B) The first '•', reading left to right.
C) ≡
D) $\lor$
E) There is no main operator.

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