Multiple Choice
1. (U • Y) ⊃ Z
2. ∼Z
-Which of the following propositions is derivable from the given premises using any of the twenty-five rules of PL and either the direct or conditional methods of proof?
A) U ⊃ ∼Y
B) ∼(U • Y)
C) Y ⊃ ∼U
D) All of the above
E) None of the above
Correct Answer:

Verified
Correct Answer:
Verified
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