Multiple Choice
∼(∃x) (Px • Qx) ≡ (∀x) (Px ⊃ ∼Qx)
-Consider assuming '∼(∃x) (Px • Qx) ' for a conditional proof of one direction of the biconditional in the above logical truth. Which of the following propositions is a legitimate second step in that proof?
A) (∀x) ∼ (Px • Qx)
B) Px ⊃ ∼Qx
C) Px • Qx
D) Pc • Qc
E) ∼(∀x) (Px ⊃ ∼Qx)
Correct Answer:
Verified
Correct Answer:
Verified
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