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Dictionary Meaning and Definition on 'Inconsistent'

Inconsistent Meaning and Definition from WordNet (r) 2.0
    inconsistent adj
  1. displaying a lack of consistency; "inconsistent statements"; "inconsistent with the roadmap" [ant: consistent]
  2. not capable of being made consistent or harmonious; "inconsistent accounts"
  3. not in agreement [syn: discrepant]
Inconsistent Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)
    Inconsistent \In`con*sist"ent\, a. [Pref. in- not + consistent: cf. F. inconsistant.]
  1. Not consistent; showing inconsistency; irreconcilable; discordant; at variance, esp. as regards character, sentiment, or action; incompatible; incongruous; contradictory.
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Wikipedia Meaning and Definition on 'Inconsistent'

In logic, a consistent theory is one that does not contain a contradiction. The lack of contradiction can be defined in either semantic or syntactic terms. The semantic definition states that a theory is consistent if it has a model; this is the sense used in traditional Aristotelian logic, although in contemporary mathematical logic the term satisfiable is used instead. The syntactic definition states that a theory is consistent if there is no formula P such that both P and its negation are provable from the axioms of the theory under its associated deductive system.

If these semantic and syntactic definitions are equivalent for a particular logic, the logic is complete.. Stronger logics, such as second-order logic, are not complete.

A consistency proof is a mathematical proof that a particular theory is consistent. The early development of mathematical proof theory was driven by the desire to provide finitary consistency proofs for all of mathematics as part of Hilbert's program. Hilbert's program was strongly impacted by incompleteness theorems, which showed that sufficiently strong proof theories cannot prove their own consistency (provided that they are in fact consistent).

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Words and phrases related to 'Inconsistent'

'Inconsistent' in famous quotation sentence

* Absurdity, n. A statement or belief manifestly inconsistent with one's own opinion. - Ambrose Bierce

* Let tears flow of their own accord their flowing is not inconsistent with inward peace and harmony. - Seneca

* Absurdity. A statement or belief manifestly inconsistent with one's own opinion. - Ambrose Gwinett Bierce

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Inconsistent Sample Sentences in News

  • Rajaratnam's brother loses bid to dismiss insider trading charges
    (This story from April 18 corrects the number of counts the judge called "inconsistent" from four to two in 3rd, 16th and 17th paragraphs) By Nate Raymond NEW YORK (Reuters) - Rengan Rajaratnam, the younger brother of imprisoned hedge fund manager Raj Rajaratnam, on Friday lost a bid to dismiss some of the insider trading charges leveled against him last Read more on this news related to 'Inconsistent'
  • UK policy on Sri Lanka timid and inconsistent, say MPs
    Committee says government should have taken stand on human rights before Sri Lanka hosts Commonwealth summit A parliamentary committee has accused the government of timid and inconsistent policy towards Sri Lanka, where it says there are "continuing human rights abuses". The Commons foreign affairs committee says the government should have made Sri Lanka Read more on this news related to 'Inconsistent'
  • Inconsistent Ike sent packing
    NEW YORK — The Mets traded slumping first baseman Ike Davis to the Pittsburgh Pirates Friday night, parting ways with a power hitter who proved to be too inconsistent at the plate. Read more on this news related to 'Inconsistent'

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