1. (∀x) (∀y) {Pf(x,y) ⊃ [Pf(x,x) • Pf(y,y) ]}
2. a=f(d,b)
3. Pa
-Which of the following propositions is derivable from the given premises in FF?
A) Pf(b,b)
B) Pf(b,d)
C) Pf(a,a)
D) Pf(a,d)
E) Pf(d,a)
Correct Answer:
Verified
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Q154: 1. (∀x)(∀y)(Bxy ≡ Dyx)
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2. a=f(d,b)
3.
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2. ∼Pab
-Which
Q161: 1. (∀x)(∀y)(∀z)[(Pxy • Pyz) ⊃ Pxz]
2. (∀x)Pxf(x)
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2. (∀x)Pxf(x)
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Q163: 1. (∀x)(∀y)[(Px • Py) ⊃ Pf(x,y)]
2. (∃x)[Px
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