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  • Fallacies are bad arguments that are so common that they've been given a name.
  • Arguments with these forms are made frequently because they look like good arguments.

This occurs when someone argues that a view is true on the grounds that it is popular.

Ex:

(1) Everyone eats animal meat.

therefore,

(2) I should eat animal meat.

This fallacy occurs when someone argues that a statement is true because people have either believed it for a short time (novelty) or for a long time (tradition).

Example:

(1) My family has always voted for republican candidates.

therefore,

(2) I should vote for a republican candidate.

Produce examples to illustrate the difference between RELEVANT and IRRELEVANT PREMISES

Identify and produce arguments that pass and arguments that fail the true premise test

GOALS!

Identify fallacious argument forms.

Identify and produce arguments that pass and arguments that fail the proper form test

Appeal to Ignorance

Some improper forms

This fallacy is committed when someone claims that a statement is true by appealing to the fact that it has not been proven false, or that the audience does not know that it is false.

Example

(1) It has been shown that the universe could not have been created in seven days.

therefore,

(2) Evolution is true.

Ad Hominem

This fallacy is committed when the person arguing attacks a person instead of arguing against the view the person asserts.

Example:

(1) Gloria says we should buy groceries from Kroger

(2) Gloria grew up in a wealthy family

therefore,

(3) We should not follow Gloria's advice.

Appeal to Novelty or Tradition

Appeal to Popularity

Fallacies of Relevance

What is a Fallacy?

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