1. (∃x)(Ax • Bx • Cax)
2. (∀x)[(Ax • Cax) ⊃ x=d]
-Which of the following propositions is derivable from the given premises in F?
A) Bd
B) Caa
C) Ax
D) a=d
E) Aa

Question

Quizplus · Accepted Answer

The first premise states that there exists an object that has properties A, B, and Ca. The second premise states that any object that has properties A and Ca is identical to d. Therefore, we can conclude that there exists an object that is identical to d.

1. (∃X)(Ax • Bx • Cax)