Use Indirect Truth Tables to Determine Whether Each of the Following

question 104

Multiple Choice

use indirect truth tables to determine whether each of the following arguments is valid. If the argument is invalid, choose an option which presents a counterexample. (There may be other counterexamples as well.)
-(A ≡ B) • (A $\lor$ C)
C / B

• A) Valid
• B) Invalid. Counterexample when A and C are true and B is false
• C) Invalid. Counterexample when A is true and B and C are false
• D) Invalid. Counterexample when C is true and A and B are false
• E) Invalid. Counterexample when A, B, and C are false

---

Definitions:

Self-Fulfilling Prophecy

A prediction that causes itself to become true due to the behavior it inspires.

Communication Apprehension

Fear or anxiety associated with either real or anticipated communication with other people.

Looking-Glass Self

Concept that people learn who they are by their interactions with others, who reflect their self back to them.

Social Decentering

The cognitive ability to step outside one's own perspective and consider the thoughts, feelings, and motives of others.