Logical Fallacies 1
Logical Fallacies 2
Logical Fallacies 3
Logical Fallacies 4
Logical Fallacies 5
100

A fallacy based on fear that one step will inevitably lead to the next.

Slippery Slope

100

When a writer arrives at a conclusion based on inadequate evidence or a sample that is too small.

Hasty Generalizations

100

Using a premise to prove a conclusion when the premise itself assumes the conclusion is true.

Begging the Question

100

Basing a conclusion solely on the absence of knowledge.

Appeal to Ignorance

100

When a writer tries to prove a point by focusing on only one side of the argument while ignoring the other.

Stacking the Deck

200

Introducing an unrelated or invalid point to distract the reader from the actual argument.

Red Herring

200

Discrediting an argument by attacking the person who makes it, rather than the argument itself.

Attacking the Person/Ad Hominem

200

Claiming that a position is true because most people believe it is. 

Appeal to Popular Opinion.

200

Exploiting the audience's feelings to convert them to a particular viewpoint.

Appeal to Emotion

200

Accepting someone's argument because of his or her authority in a field unrelated to the argument, rather than evaluating the person's argument on its own merits.

Appeal to Authority

300
A serious flaw in reasoning and constructing arguments.
What is a logical fallacy?
300

A rhetorical device the repeats the initial consonant sounds in a series of words.

Alliteration

300

A: Paying someone to write your essays for you is cheating.

B: You copied my homework all the time in high school; this is no different.

Appeal to Hypocrisy

300

Moderator: Candidate, our city has faced corruption issues at City Hall for the past three decades. How do you plan to combat corruption in city government?

Participant: I have a multistep plan for combating corruption, and I also have ten-point plan for reducing emissions. The first step is that ten-point environmental plan is...

Red Herring

300

At the birthday I attended over the weekend, there was a clown. Clowns are a part of birthday parties.

Hasty Generalizations

400

All the parts of the engine were lightweight, so the engine should have been lightweight.

Composition

400

That company donates a lot of money to charity, so every person who works there must be a charitable person.

Division

400

You appealed to popularity or the fact that many people do something as an attempted form of validation.

Appeal to Popular Opinion

400

You said that because an important person thinks something, it must therefore be true.

Appeal to Authority

400

You assumed that one part of something has to be applied to all, or other, parts of it; or that the whole must apply to its parts.

Fallacy of Composition/Division

500

You attempted to manipulate an emotional response in place of a valid or compelling argument.

Appeal to Emotion

500

I know I can trust Janine because she says that I can.

Begging the Question

500

The sign by the pond said, "Fine for Swimming" so I dove right in.

Equivocation

500

Don't listen to Becky's opinion on welfare; she just opposes it because she's from a rich family.

Attacking the Person/Ad Hominem

500

A: I'm in favor of lowering sentences for drug offenses. 

B: So you think our children should be running around doing drugs?!

Straw Man Fallacy - distorting someone else's argument to make it easier to attack or refute.

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