1. How to win friends and influence people by being a jerk.
Logical Fallacies
How to win friends and influence people by being a jerk.

2. What is a fallacy?

3. What is a fallacy?
A fallacy is an error which causes a faulty argument or faulty reasoning.

4. What is a fallacy?
A fallacy is an error which causes a faulty argument or faulty reasoning.
An argument or line of reasoning which contains a fallacy is “fallacious.”

5. Types of Fallacies
There are hundreds of fallacies. For the purpose of this class, we will review only the following:
Straw Man
Ad Hominem
Red Herring
Slippery Slope
Glittering Generalities

6. The Straw Man

7. The Straw Man
Oversimplifying an opposing argument in order to more easily refute it.

8. The Straw Man Examples:
Liberals think that the way to pay for anything is to just raise taxes!
Conservatives only care about rich people!

9. Ad Hominem

10. Ad Hominem
Attacking the character or personal traits of an opponent in order to undermine their argument.

11. Example: After Sally presents an eloquent and compelling case for a more equitable taxation system, Sam asks the audience whether we should believe anything from a woman who isn’t married, was once arrested, and smells a bit weird.
Ad Hominem

12. Changing the subject in order to detract from the original issue.
Red Herring

13. Trump Video
(0:00-0:45, 0:50-End)
Red Herring

14. Slippery Slope
Using extreme hypotheticals to weaken an opposing argument.

15. Slippery Slope
The Mohel (1:09-1:58)

16. Glittering Generalities
Using emotional and appealing words that sound nice, but which do not add to the significance of a statement.

17. Glittering Generalities
Using emotional and appealing words that sound nice, but which do not add to the significance of a statement.