The document discusses a critical thinking course focused on truth-functional logic, emphasizing its role in identifying valid and invalid arguments. It highlights the importance of understanding common truth-functional fallacies. A question is posed regarding the identification of a well-known truth-functional fallacy among several options.

1. Critical Thinking Course...Philosophy
In Chapter 8, we learned the basics of truth-functional logic. It is important to remember that the
purpose of truth-functional logic is to determine which arguments are valid and which are
invalid, and common invalid forms are known as truth-functional fallacies. Consider the
following question. Which of the following is a well-known truth-functional fallacy? (Points : 4)
a. Modus tollens
b. Modus ponens
c. Valid chain
d. Denying the consequent
Solution