The Dentist Is Pleased If, and Only If, I Both $\lor$

question 249

Multiple Choice

The dentist is pleased if, and only if, I both brush and floss. The dentist is not pleased, but I brush. So, I don't floss.
-Which of the following is the best translation into PL of this argument?

• A) P ⊃ (B • F) ∼P • F / ∼F
• B) P ≡ (B • F) ∼P • B / ∼F
• C) P ≡ (B • F) ∼P \( \lor \) B / ∼F
• D) (P ≡ B) • F ∼P \( \lor \) B / ∼F
• E) (P ≡ B) • F ∼P • B / ∼F

---

Definitions:

Economic Profit

The surplus generated after subtracting both direct and indirect expenses from the total revenue.

Pure Monopolist

A company or entity that is the sole provider of a particular product or service, without close substitutes, in a market.

Profit-Maximizing

The process or goal of setting production levels to achieve the highest possible profit based on current market conditions.

Total Cost

The aggregate of all costs, both fixed and variable, incurred in the production of goods or services.