Fallacy


 

A fallacy is any mistaken statement used in an argument. In logic, it specifically means an argument that violates the rules of formal demonstration. Beginning with Aristotle, fallacies have generally been placed in one of three categories: a fallacy (misstatement of facts), a verbal fallacy (improper use of words), or a logical fallacy (also called a formal fallacy—a mistake in the process of inference). The latter two fallacies are called fallacies in dictione (L., in delivery) or in voce (L., in expression), as opposed to material fallacies in re (L. in fact/cause/property) or extra dictionem (outside of/beside delivery).

Related Topics:
Argument - Logic - Aristotle - Logical fallacy - L.

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A different approach to understanding and classifying fallacies is provided by argumentation theory; see for instance the van Eemeren, Grootendorst reference below. In this approach, an argument is regarded as an interactive protocol between individuals which attempts to resolve a disputed proposition. The protocol is regulated by certain rules of interaction and violations of these rules are fallacies.

Related Topics:
Argumentation theory - Protocol

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Recognizing fallacies in practical arguments may be difficult since arguments are often structured using rhetorical patterns that obscure the logical connections between assertions. As we illustrate with various examples, fallacies may also exploit the emotions or intellectual or psychological weaknesses of the interlocutor. Having the capability of recognizing logical fallacies in arguments will hopefully reduce the likelihood of such an occurrence.

Related Topics:
Rhetoric - Emotion - Psychological

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~ Table of Content ~

Introduction
Aristotelian fallacies
Other systems of classification
Examples of fallacious arguments
Fallacies in the media and politics
See also

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Latest news on fallacy

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Room in a large house in the outer sunset. Right off the L line, our street features a few bars and the best 7-11 in existence. House has four bedrooms, dining room with a bar, kitchen, bathroom, and washer/dryer. Room features great windows, a large closet and get this -- A BUILT IN PENCEL SHARPENER!!! As for the roommates... there's a girl and a boy. Girl is 24 and enjoys books, cooking, chess, and exploring. Boy is 27, non profit employee, water polo player, and tall. We like having small dinner parties and yelling at Jeopardy. Our beloved roommate is moving to LA because IT'S SO MUCH BETTER THERE. This is a fallacy of course but we don't want to crush his dreams. We also have a four legged companion named Elijah who likes cuddling and eating things off the floor. YOU: we're looking for someone who can pay rent on time and is pretty easygoing. If you happen to have a dining room table better than our old granny set that would help but we're not picky. Preference goes to people down for Texas Hold 'Em and happy excursions. Email for open house details, we're looking for someone to move in by the end of the month!

True Lies from the Shoemoney

Vladimir Lenin is attributed as saying ?A lie told often enough becomes truth.? I just came across a bizarre example of this sort of fallacy by the blogger known as the ?Shoemoney.? He wrote a blog post about a recent settlement between MySpace and Media Breakaway with this curious reference? ?Shawn Collins, Close personal friend of Richter?? Now [...]