Multiple Choice
[(C ⊃ D) • ∼D] ⊃ ∼C
Which of the following propositions is a proper assumption for conditional proof to prove that the above wff is a logical truth of PL?
A) [(C ⊃ D) • ∼D] ⊃ ∼C
B) (C ⊃ D) • ∼D
C) C ⊃ D
D) C
Correct Answer:

Verified
Correct Answer:
Verified
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