A paradox is a statement that apparently contradicts itself and yet might be true. Most logical paradoxes are known to be invalid arguments but are still valuable in promoting critical thinking. Some paradoxes have revealed errors in definitions assumed to be rigorous, and have caused axioms of mathematics and logic to be re-examined. One example ...

an unusual statement of truth through obvious contradiction.
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• (n.) A tenet or proposition contrary to received opinion; an assertion or sentiment seemingly contradictory, or opposed to common sense; that which in appearance or terms is absurd, but yet may be true in fact.

(from the article `complexity`) Paradoxes typically arise from false assumptions, which then lead to inconsistencies between observed and expected behaviour. Sometimes paradoxes ... Mathematical paradoxes and fallacies have long intrigued mathematicians. A mathematical paradox is a mathematical conclusion so unexpected that it is ... ...
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noun (logic) a statement that contradicts itself; ``I always lie` is a paradox because if it is true it must be false`
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[literature] In literature, the paradox is an anomalous juxtaposition of incongruous ideas for the sake of striking exposition or unexpected insight. It functions as a method of literary composition - and analysis - which involves examining apparently contradictory statements and drawing conclusions either to reconcile them or to explain th...

[magazine] Paradox: The Magazine of Historical and Speculative Fiction (also known as Paradox Magazine or simply Paradox) was an award-winning literary magazine featuring original short historical fiction in all of its forms up to novella length. This includes mainstream historical fiction as well as other genre fiction with historical them...

[theorem prover] Paradox is an automated theorem proving system developed by Koen Lindström Claessen and Niklas Sörensson at the Chalmers University of Technology. The software is written in the Haskell programming language and is released under the terms of the GNU General Public License and is free ...

[warez] PARADOX (PDX) is a warez–demogroup; an anonymous group of software engineers that devise ways to defeat software and video game licensing protections, a process known as cracking, which is illegal in most jurisdictions. They distribute cracks (software patches), keygens (key generators), and pre-cracked versions of entire programs...

Par`a·dox noun ; plural Paradoxes . [ French paradoxe , Latin paradoxum , from Greek ...; para` beside, beyond, contrary to + ... to think, suppose, imagine. See Para- , and Dogma .] A tenet or proposition contrary to received opinion; an assertio...
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a figure of speech in which an apparent contradiction contains a truth
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A seemingly self-contradictory and therefore absurd and senseless statement; sometimes, however, a paradox can contain some universal and important truth which is revealed on second thought.
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a self-contradictory phrase or sentence, such as 'the ascending rain' or Alexander Pope's description of man, 'Great lord of all things, yet a prey to all.' Don Marquis's 'quote buns by great men quote' (archys life of mehitabel [London: Faber and Faber, 1934]: 103-04), describes a drunk trying to go up a down-escalator as 'falling upwards / throug...
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A self-contradictory phrase or sentence, such as 'the ascending rain' or alexander pope's descriptio
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a statement or sentiment that is seemingly contradictory or opposed to common sense, and yet is perhaps true in fact, or a statement that is actually self-contradictory (and therefore false) even though it appears true.
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A statement that initially appears to be contradictory but then, on closer inspection, turns out to make sense.
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