1. (∀X)(∀y)(Bxy ≡ Dyx)

question 58

Multiple Choice

1. (∀x) (∀y) (Bxy ≡ Dyx)
2. (∃x) Bxf(x)
-Which of the following propositions is an immediate (one-step) consequence in FF of the given premises?

• A) (∃x)Baa
• B) (∃x)Bf(x)f(x)
• C) Baa
• D) Bf(x)f(x)
• E) Baf(a)

---

Definitions:

Quantity Demanded

The total amount of a good or service that consumers are willing and able to purchase at a specific price level.

Unit Elasticity

A situation where a percentage change in price leads to an equal percentage change in quantity demanded or supplied.

Graph

A visual representation of data, relationships, or functions, typically using lines, bars, or points, to simplify the understanding and analysis of complex information.

Elasticity

A measure of how much the quantity demanded or supplied of a good changes in response to changes in its price or other factors.