1. (∀X)(Ecx ⊃ X=d)

question 271

Multiple Choice

1. (∀x) (Ecx ⊃ x=d)
2. (∀x) {(Fx • Gx) ⊃ (∀y) [(Fy • Gy) ⊃ y=x]}
3. (∃x) (Fx • Gx • Ecx)
4. Fa • Ga
-Which of the following propositions is derivable from the given premises in F?

• A) Ecc
• B) a=d
• C) a=c
• D) Ecx
• E) c=d

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