Proposition 1A Given the Following Proposition

question 326

Multiple Choice

Proposition 1A
Given the following proposition:
[A ⊃ ∼ (B • Y) ] ≡ ∼[B ⊃ (X • ∼ A) ]
-In Proposition 1A, the main operator is a:

• A) Tilde.
• B) Wedge.
• C) Triple bar.
• D) Dot.
• E) Horseshoe.

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