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Fallacies

CT2.0 is dedicated to providing good examples of informal reasoning for use in classrooms in a variety of disciplines.  While we are not terribly fond of the term ‘fallacy,’ as explained On the concept of ‘fallacy’, we do recognize the common use of the term. To support our peers, we provide this list of the current taxonomy of forms of reasoning in CT2.0, along with links to the category pages and RSS feeds for new examples:

Fake Expert

Fake Expert: A fallacious appeal to authority in which the 'expert' is not an expert at all.

Expert in the wrong domain

Expert in the wrong domain: a fallacious version of an appeal to authority - i.e. appealing to a doctor...

Slippery Slope

Slippery slope: If we take one step, we’ll have to take all the rest of them because there’s no...

Post Hoc Ergo Propter Hoc

Post hoc ergo propter hoc: “After this, therefore because of this”, a fallacy in reasoning about causes. (I took...

Poisoning The Well

Poisoning the well: Telling the audience what to think of a speaker when you’re introducing the speaker (My next...

Loaded Question

Loaded question: A question with an unacceptable pre-supposition. (Why do you hate America so much? – Stephen Colbert)

Fallacies of Relevance

Fallacies of Relevance: Bringing up irrelevant considerations in an effort to distract listener from the merits of the actual...

Guilt By Association

Guilt by Association: You are just the same as X, and X is terrible. Therefore, you’re terrible (the conclusion...

Genetic Fallacy

Genetic fallacy: Saying that some idea’s history or origin (genesis) means it is true/false.

Equivocation

Equivocation: when an argument relies on an ambiguous word (a word with more than one possible meaning), shifting in...

Enthymeme

Enthymeme: general term for an argument with a gap (missing premise)

Confusing Correlation With Causation

Confusing Correlation With Causation: (Buying gas is correlated with owning a car. Clearly, buying gas causes car ownership.)

Confirmation Bias

Confirmation bias: seeing what you believe; interpreting observations/data to match a conclusion you already have in mind.

Undermining Biography

Undermining Biography: sewing seeds of doubt due to questionable background. Also known as ‘swiftboating’.