Difference between revisions of "Non sequitur"

Revision as of 03:47, February 14, 2008

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Liberal

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-'''Non sequitur''' ([[Latin]], "It does not follow") is a [[logical fallacy]] that involves arguing from a premise to a conclusion with insufficient or no connection between the two.<ref name=Whitman>Glenn Whitman, [http://www.csun.edu/~dgw61315/fallacies.html#Non%20sequitur Non sequitur], ''Glen Whitman's Debate Page'', August 30, 2005. Retrieved April 9, 2007.</ref>
+#redirect [[Liberal]]
-== Definitions ==
-Classically, the term ''non sequitur'' applies to:
-# A conclusion that does not follow from the premises or evidence.<ref name=Heritage>[http://www.bartleby.com/61/61/N0146100.html Definition of non sequitur] in ''The American Heritage® Dictionary of the English Language'', 4th. ed., Houghton Mifflin Company, 2006. Retrieved April 9, 2007.</ref>
-# A statement that does not necessarily follow from preceding statements.<ref name=Heritage/>
-Some authorities use the term ''non sequitur'' to refer generally to any fallacy involving the introduction of irrelevant considerations.<ref name=Raveling>Paul Raveling, [http://www.sierrafoot.org/soapbox/fallacies/non_sequitur.html Non sequitur logical fallacies] at SierraFoot.org. Retrieved April 9, 2007.</ref> This, then, would include [[ad hominem]] and [[special pleading]].
-== Example ==
-The most common example of ''non sequitur'' is any attempt to infer causation from correlation alone. An argument of causality--that is, that X caused Y--is always subject to weakening if one can show that:
-# Y could have occurred with or without X.
-# Another event, Z, actually caused Y.
-# Y caused X rather than X causing Y.
-The usual way to weaken a ''non sequitur'' is simply to show that two facts, that might happen to correlate, are in fact not mutually relevant. Of course, showing that the chain of implication is reversed--meaning that the first named fact actually follows from the second, rather than the second from the first--will cast even more serious doubt on the argument.
-== References ==
-<references/>
-== See Also ==
-* [[Logical fallacy]]
-[[Category:Philosophy]]

Difference between revisions of "Non sequitur"

Revision as of 03:47, February 14, 2008

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