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1. (U • Y) ⊃ Z

Question 304

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

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