The fallacies we will discuss tonight are largely able to be classified as fallacies of ambiguity. In other words, they occur when words are used with distinct meanings in the same argument, premises are repeated, etc.

Begging the question is committed whenever the arguer creates the illusion that inadequate premises provide adequate support for the conclusion by leaving out a key premise, by restating the conclusion as a premise, or by reasoning in a circle.

Equivocation occurs when the conclusion of an argument depends on the fact that a word or phrase is used, either explicitly or implicitly, in two different senses within a single argument.

Loaded language occurs when a term or terms known to have negative or positive connotations are deliberately placed in an argument to evoke favor toward your conclusion.

This fallacy occurs when the conclusion of an argument depends on an analogy (or similarity) that is not strong enough to support the conclusion.

From discussion: › Both marijuana and alcohol can be

dangerous. So, both should be illegal.

A rationalization fallacy is an attempt to make it appear that reason is being used when in actuality excuses are being made.

The slippery slope fallacy occurs when the conclusion of an argument rests on an alleged chain reaction, and there is not sufficient reason to think that the chain reaction will actually occur.

The reductio occurs when we take an opponents view and show that if followed to its logical conclusion is absurd or leads to absurd consequences.

Or, you can try to prove your point by assuming the opposite of your point and showing that it leads to absurdity: to a contradictory or silly result.

Name that Fallacy

“Attempts to outlaw pornography threaten basic civil rights and should be abandoned. If it is outlawed then censorship or newspapers is only a short step away.”

› A. Begging the Question› B. Slippery Slope› C. Reductio› D. False Cause

“The amount of television that children view daily has increased over the last 25 years. During this time standardized test scores for children have dropped. Obviously, television is making our kids intellectually lazy.”

› A. Hasty Generalization› B. Appeal to ignorance› C. False Cause› D. Card Stacking› E. No Fallacy

“When a car breaks down so often that repairs become pointless, the car is thrown in the junk. Similarly, when a person becomes old and diseased, he or she should be mercifully put to death.”

› A. False cause› B. Rationalization› C. Ad baculum› D. Weak analogy

“Mike’s car is light blue, has leather upholstery, and gets great gas mileage. Bill’s car also is light blue and has leather upholstery. Therefore, it must get great gas mileage.”

› A. False analogy› B. False Cause› C. Strawman› D. Circular Reasoning

“Your honor it is true that I abused my children, but I was abused myself. It is understandable that I abused them.”

› A. Ad baculum› B. Rationalization› C. Weak analogy› D. False Cause

“Of course you should vote for Strickland! Everyone here in the department is voting for Strickland.”

› A. False Cause› B. Weak analogy› C. Ad populum› D. Loaded Language› E. No fallacy

“Have you stopped drinking excessively yet?”

› A. Ad hominem› B. False Cause› C. Weak analogy› D. Loaded Language

“Islamic fundamentalists stormed cites in India, killing and holding people hostage. The message is clear: All Muslims are religious fanatics prone to violence.”

› A. Card Stacking› B. Hasty Generalization› C. Ad Ignorantium› D. Ad Nauseum› E. No Fallacy

“The Book of Mormon is true because it was written by Joseph Smith. Smith wrote the truth because he was divinely inspired. We know he was divinely inspired because the Book of Mormon says so.”

› A. Reductio› B. False Analogy› C. Begging the Question› D. False Cause

“California condors are rapidly disappearing. This bird is a California condor. Therefore, this bird should disappear any minute now.”

› A. Equivocation› B. Begging the Question› C. False Cause› D. No fallacy

“Evangelical make up a significant voting bloc. However, this shouldn’t be tolerated. Religious extremists have no place voting in a deliberative democracy.”

› A. Loaded Language› B. Weak analogy› C. False cause › D. Ad hominem

“If we extend the North Atlantic Free Trade Agreement, the governments of Central and South America will demand that we buy their goods and hire their nationals in our factories. Soon, American industry will be unable to compete. Then our national sovereignty will erode as we become progressively poorer and other countries in our hemisphere become progressively richer.”

› A. Strawman› B. Rationalization› C. Weak analogy› D. Slippery Slope

“Domestic terrorism is on the rise. Apparently those right-wing radio talk shows are starting to bear fruit.”

› A. Stawman› B. Weak Analogy› C. Begging the Question› D. Equivocation