By Definition
Name The Fallacy
Is This A Fallacy
Reverse Definitions
More Definitions
100

The ___ lies not with the person making the claim, but with someone else to disprove.

Burden of Proof

100

This is organic celery, so it is healthier than regular celery.

Appeal to Nature

100

My friend went to therapy for months and never felt any better. In fact, they got worse. So, therapy doesn’t really help people.

Yes (Anecdotal)

100

No True Scotsman

Appeal to purity to dismiss relative criticisms or flaws

100

Judging something as either good or bad on the basis it comes from, or from whom it came.

Genetic

200

Cherry-picking a data cluster to suit your argument, or finding a pattern to fit a presumption.

Texas Sharpshooter

200

Allowing students to use calculators on math exams means they'll use it for everything; they’ll forget how to do it without and eventually society will lack basic math skills.

Slippery Slope

200

You can't trust Sam's advice on parenting. He doesn't even have kids!

Yes (Ad Hominem - Character Assassination)

200

Loaded Question

Asking a question with presumption built into it so it cant be answered without looking guilty 

200

Avoiding having to engage with criticism by turning it back on on the accuser (answering criticism with criticism).

Tu Quoque

300

Manipulating an emotional response in place of a valid or compelling argument.

Appeal to Emotion 

300

You can trust Colorado weathermen because they have a reputation for accuracy.

Begging the Question

300

Primavera is beautiful because it was painted by Boticelli, and all paintings by Boticelli are beautiful.

Yes (Begging the Question)

300

Ambiguity

Double meaning or ambiguity of language to mislead/misrepresent

300

Presuming that a real or perceived relationship between things means that one is the cause of the other.

False Cause

400
Presuming that because a claim has been poorly argued or a fallacy made that the claim itself is wrong.

Fallacy Fallacy

400

One person argues that psychiatric medications are dangerous, where another argues that it is just as much ⎯ if not more ⎯ dangerous to not take them; the same as not taking your heart medication.

Personal Incredulity

400

The sun rises in the east and sets in the west, so we can assume it will rise in the east tomorrow.

Not a Fallacy 

400

Ad Hominem

Attack on an opponent based on characteristics to undermine their argument

400

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

Composition/Division

500

Moving the goalposts or making up an exception when your claim was shown to be false.

Special Pleading

500

At a murder trial, the defendant argues: "I know I broke the law, but you have to understand I've had a very tough life. I've been hungry and homeless."

Appeal to Pity/Emotion

500

There's a sale going on for winter coats. It's winter and I need a new coat, so I should go buy one.

Not a Fallacy

500

Gamblers Fallacy

Runs occur to statistically independent phenomena

500

Using double meaning or ambiguity of language to mislead or misrepresent the truth.

Ambiguity

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