assertion

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assertion

(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.
References in classic literature ?
I have asserted, that true honour and true virtue are almost synonymous terms, and they are both founded on the unalterable rule of right, and the eternal fitness of things; to which an untruth being absolutely repugnant and contrary, it is certain that true honour cannot support an untruth.
"I agree," answered Thwackum, with great warmth, "with a man who asserts honour to be antecedent to religion!
Chemists--I assert it emphatically--might sway, if they pleased, the destinies of humanity.
26th, with another note to Percival, warning him to show his wife her uncle's letter of invitation, to assert that Marian had gone on before her, and to despatch her to town by the midday train, on the 26th, also.
His business, in the interests of his niece, was to assert your marriage to the lady.
The Saxon had been under very intense and agonizing apprehensions concerning his son; for Nature had asserted her rights, in spite of the patriotic stoicism which laboured to disown her.
But said one of the four servants, "Unless, indeed, this is a deliberate joke, I cannot bring myself to believe that men so intelligent as those present are, or seem to be, can venture to declare and assert that this is not a basin, and that not a pack-saddle; but as I perceive that they do assert and declare it, I can only come to the conclusion that there is some mystery in this persistence in what is so opposed to the evidence of experience and truth itself; for I swear by"- and here he rapped out a round oath- "all the people in the world will not make me believe that this is not a barber's basin and that a jackass's pack-saddle."
Having, therefore, as you assert, so many causes of complaint against him, show your courage in seeking him out, and afford him an opportunity of giving you that satisfaction you seem to ask of every one but of himself." De Wardes passed his hand across his forehead, which was covered with perspiration.
The Flea jumped so high that nobody could see where he went to; so they all asserted he had not jumped at all; and that was dishonorable.
You are very complimentary to my partner, indeed," asserted the donkey, rubbing his front hoofs together as if highly pleased.
"Then they know there's more water in the world than there is land," asserted the crab, in a shrill, petulant voice.
The next paragraph asserted that the said Eustace Macallan, taken before John Daviot, Esquire, advocate, Sheriff-Substitute of Mid-Lothian, did in his presence at Edinburgh (on a given date, viz., the 29th of October), subscribe a Declaration stating his innocence of the alleged crime: this Declaration being reserved in the Indictment--together with certain documents, papers and articles, enumerated in an Inventory--to be used in evidence against the prisoner.