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assertion

[uh-sur-shuh n] /əˈsɜr ʃən/
noun
1.
a positive statement or declaration, often without support or reason:
a mere assertion; an unwarranted assertion.
2.
an act of asserting.
Origin of assertion
late Middle English
1375-1425
1375-1425; late Middle English assercion < Latin assertiōn- (stem of assertiō). See assert, -ion
Related forms
assertional, adjective
misassertion, noun
nonassertion, noun
overassertion, noun
reassertion, noun
superassertion, noun
Synonyms
1. claim, contention, allegation.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for assertion
Contemporary Examples
Historical Examples
  • His hollow voice and laboured breath gave the lie to his assertion.

    Afterwards Kathlyn Rhodes
  • Her assertion was disregarded as to the inability to change.

    Within the Law Marvin Dana
  • Giles had refused to believe his assertion of innocence, and he had no proof.

    Uncle Max Rosa Nouchette Carey
  • I'm inclined to question, furthermore, the assertion that these jewels were your mother's.

    The Black Bag Louis Joseph Vance
  • Again and again the narrative was repeated, till conjecture once more began to take the place of assertion.

    The Mark Of Cain Andrew Lang
British Dictionary definitions for assertion

assertion

/əˈsɜːʃən/
noun
1.
a positive statement, usually made without an attempt at furnishing evidence
2.
the act of asserting
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for assertion
n.

early 15c., assercioun, from Middle French assertion (14c.) or directly from Late Latin assertionem (nominative assertio), noun of action from past participle stem of Latin asserere "claim rights over something, state, maintain, affirm," from ad- "to" (see ad-) + serere "join" (see series). By "joining oneself" to a particular view, one "claimed" or "maintained" it.

Online Etymology Dictionary, © 2010 Douglas Harper
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assertion in Technology

programming
1. An expression which, if false, indicates an error. Assertions are used for debugging by catching can't happen errors.
2. In logic programming, a new fact or rule added to the database by the program at run time. This is an extralogical or impure feature of logic programming languages.
(1997-06-30)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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