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1. (∀X)[(Px • Qx) ⊃ Rf(x)]

Question 167

Multiple Choice

1. (∀x) [(Px • Qx) ⊃ Rf(x) ]
2. (∀x) [Rx ⊃ (∃y) Pxy]
3. ∼(∀x) (Px ⊃ ∼Qx)
-Which of the following propositions is an immediate (one-step) consequence in FF of the given premises?


A) (∃x) ∼(Px ⊃ ∼Qx)
B) Px ⊃ ∼Qx
C) ∼(Px ⊃ ∼Qx)
D) Pf(a) ⊃ ∼Qf(a)
E) (Pa • Qa) ⊃ Ra

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