Question: Need help for this question. Given - No doctor buys Advil. - Some people who buy Advil are sick. Using first-order logic, prove that: Some

Need help for this question.

Given

- No doctor buys Advil.

- Some people who buy Advil are sick.

Using first-order logic, prove that: Some sick people are not doctors.

Assume that the universe consists of all people and use the following predicates in your proof:

D(x): x is a doctor

A(x): x buys Advil

S(x): x is sick

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