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A '''contradiction''' is the simultaneous acceptance and denial of a proposition or statement. "It was the best of times and the worst of times" is a poetic example: the contradiction is being used to enhance the poetic nature of the piece.
A '''contradiction''' is the simultaneous acceptance and denial of a proposition or statement. "It was the best of times and the worst of times" is a poetic example: the contradiction is being used to enhance the poetic nature of the piece.
According to J.Sarfati, a contradiction is defined as the conjunction of the affirmation and denial of a premise, in the same time, place, and sense (i.e. p and not-p, or in symbolic form, p.~p).<ref>{{cite web
|title=Is God a particle-wave duality?
|author=Jonathan Sarfati
|publisher=Creation Ministries International
|date=4 November 2012
|url=http://creation.com/god-particle-wave-duality
|accessdate=2012-11-04}}</ref>
In a [[proof]], if two contradictory [[inference]]s can be drawn from the [[premise]], this indicates either that a premise is false or that the argument is invalid.
In a [[proof]], if two contradictory [[inference]]s can be drawn from the [[premise]], this indicates either that a premise is false or that the argument is invalid.
# “P”, absolutely anything you like, is true.
# “P”, absolutely anything you like, is true.
==References==
<references/>
[[category:logic]]
[[category:logic]]