Which of the following represents that there is only one apple when A(x): x is…
Which of the following represents that there is only one apple when A(x): x is an apple?
- A.
(∃x A(x))∧(∀y ((y≠x)→¬A(y)))
- B.
(∃x A(x))∧(∀y (A(y)→y=x))
- D.
∃x ∀z (A(z)↔z=x)
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