[1] : The Collaborative International Dictionary of English v.0.48

negation \nega"tion\, n. l. negatio, fr. negare to say no, to
   deny; ne not + the root of aio i say; cf. gr. ?, skr. ah to
   say; cf. f. n'egation. see no, adv., and cf. adage,
   deny, renegade.
   1. the act of denying; assertion of the nonreality or
      untruthfulness of anything; declaration that something is
      not, or has not been, or will not be; denial; -- the
      opposite of affirmation.
      1913 webster

            our assertions and negations should be yea and nay.
                                                  --rogers.
      1913 webster

   2. logic description or definition by denial, exclusion, or
      exception; statement of what a thing is not, or has not,
      from which may be inferred what it is or has.
      1913 webster
see also:
no adage deny renegade affirmation 

[2] : WordNet (r) 2.0

negation
     n 1: a negative statement; a statement that is a refusal or
          denial of some other statement
     2: the speech act of negating
     3: logic a proposition that is true if and only if another
        proposition is false

[3] : Moby Thesaurus II by Grady Ward, 1.0

141 moby thesaurus words for "negation":
   abnegation, abolishment, abolition, absence, annihilation,
   annulment, antagonism, argumentation, bucking, challenge, choking,
   choking off, clashing, conflict, contention, contradiction,
   contraposition, contravention, contraversion, controversy,
   counteraction, counterworking, crosscurrent, crossing, declension,
   declination, declinature, declining, denial, deprivation,
   deracination, difference, disaccord, disaccordance, disagreement,
   disallowance, disclaimer, disclamation, disconfirmation, discord,
   discordance, discordancy, discrepancy, disharmony, disobedience,
   disparity, disproof, disproval, disproving, dissension, dissent,
   dissidence, dissonance, disunion, disunity, divergence, diversity,
   elimination, emptiness, eradication, explosion, expose, exposure,
   extermination, extinction, extinguishment, extirpation, faction,
   gainsaying, head wind, holding back, impugnation, impugnment,
   inaccordance, inequality, invalidation, jarring, liquidation, nay,
   negative, negative answer, negativeness, negativity, nihility, nix,
   no, nonacceptance, nonbeing, noncompliance, nonconsent, nonentity,
   nonexistence, nonobservance, nonoccurrence, nonreality,
   nonsubsistence, not-being, nothingness, nullification, nullity,
   opposing, opposition, opposure, oppugnancy, oppugnation, purge,
   rebutment, rebuttal, recantation, redargution,
   reductio ad absurdum, refusal, rejection, repudiation, repugnance,
   resistance, retention, rooting out, silencing, snuffing out,
   standing against, stifling, strangulation, suffocation,
   suppression, thumbs-down, traversal, turndown, unactuality,
   undercurrent, unharmoniousness, unreality, unwillingness,
   uprooting, vacancy, vacuity, vacuum, variance, void, voiding,
   withholding

[4] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

negation. denial. two negations are construed to mean one affirmation. dig. 
50, 16, 137. 

Negation >> N Words
Negation, definition of term: Negation
negation_pag1.html

Pfsstx -
... ..
http://www.pfs-stx.com/, score=100, date indexed=December 30, 2005, 10:51 am

Negation: The end
...Attrition is ending the 'negation' project for one reason, and one ... More libel, more lies. So, with this, we will end Negation. All files ... ..
http://www.attrition.org/negation/, score=96, date indexed=December 29, 2005, 7:34 pm

The Origens of Negation in the Gulf of Guinea Creoles
...... negation and no markers whatsoever that follow negation. From the ... Discontinuous or final negation only exists in a very limited number ... ..
http://www.udc.es/dep/lx/acblpe/comunicaciones/Hagemeijer.htm, score=80, date indexed=December 30, 2005, 7:22 pm

Negation in CycL
...... operator for classical negation; it is not a symbol for negation-by- ... defaults to NIL and controls whether or not negation-by-failure is ... ..
http://www.cyc.com/cycdoc/ref/negation.html, score=75, date indexed=January 4, 2006, 3:24 am

Negation - Wikipedia, the free encyclopedia
...... forms of negation; in Latin, simple negation is a matter of adding the ... Logical negation can be defined in terms of other logical operations. ... ..
http://en.wikipedia.org/wiki/Negation, score=67, date indexed=February 2, 2006, 10:37 am

Ressources documentaires sur le génocide nazi / Documentary resources on the ...
... ..
http://www.anti-rev.org/, score=59, date indexed=December 30, 2005, 12:56 am

Vitanza, Negation..., TOC
...I. "Some More" Difficult Beginnings * About Counting * De/Negation * ... ..
http://www.uta.edu/english/V/table_o.html, score=57, date indexed=November 4, 2005, 4:06 pm

Spanish Grammar: Negation
...Negation. A. Write the necessary word(s) to form a logical negative ... ..
http://www.studyspanish.com/practice/neg.htm, score=53, date indexed=November 11, 2005, 2:38 am

Definition of Negation
...... forms of negation; in Latin, simple negation is a matter of adding the ... Logical negation can be defined in terms of other logical operations. ... ..
http://www.wordiq.com/definition/Negation, score=52, date indexed=December 16, 2005, 2:59 am

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