For Each of the Following Questions, Determine Whether the Given $\lor$

question 28

Multiple Choice

For each of the following questions, determine whether the given formula is a wff or not. If it is a wff, indicate its main operator.
-P ⊃ (Q ⊃ R) ⊃ [(P • ∼R) ⊃ ∼Q]

• A) It's a wff. The main operator is the first \( \lor \), reading left to right.
• B) It's a wff. The main operator is the ≡.
• C) It's a wff. The main operator is the second \( \lor \), reading left to right.
• D) It's a wff. The main operator is the •.
• E) Not a wff

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