Short Answer
use indirect truth tables to determine whether each of the following arguments is valid. If the argument is invalid, specify a counterexample.
-(P Q) ⊃ R
(S ∼U) ⊃ (∼R • ∼W)
S ⊃ (P • T) / ∼S
Correct Answer:

Verified
Correct Answer:
Verified
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