assertion

Noun

1. The act of asserting; positive declaration or averment.
   • "Do tell us the real name of your country, and then when you are gone we shall know how to talk about you." To this luminous argument and remonstrance I could oppose nothing but assertion, and the whole party remained...
2. Something which is asserted; a declaration; a statement asserted.
   • You're a man of strong assertions!
   • Suppose you are given the semifactual assertion, "even if Nora had liked mathematics then she would have became^([sic]) a scientist" and then you find out that Nora did in fact become a scientist. - 2007 January 26,...

   Synonyms: contention

3. A statement or declaration which lacks support or evidence.
   • That's just a bare assertion.
   • Drivers' union ASLEF bluntly rebuffed the claim of unofficial action, calling it a lie. And Avanti West Coast was unable to provide any proof for its assertion, when questioned by RAIL. - 2022 August 24, Philip Haigh,...
   • However, that assertion is not backed up by US intelligence, sources told CNN. […] That claim came despite the Trump administration’s repeated assertions that the US had “obliterated” Iran’s nuclear program in military...
4. Maintenance; vindication.
   • the assertion of one's rights or prerogatives
5. A statement in a program asserting a condition expected to be true at a particular point, used in debugging.
   • The user should be absolutely confident that the error issued is a real design error. In other words, a user should be confident that his assertion code is correct and that the assertion failure is not a false...
6. The set of information that the statement preparer is providing in a financial statement audit.