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1. Law an actual event, happening, etc., as distinguished from its legal consequences. Questions of fact are decided by the jury, questions of law by the court or judge
2. Philosophy a proposition that may be either true or false, as contrasted with an evaluative statement
3. after (or before) the fact Criminal law after (or before) the commission of the offence
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005




(artificial intelligence, programming)
The kind of clause used in logic programming which has no subgoals and so is always true (always succeeds). E.g.

wet(water). male(denis).

This is in contrast to a rule which only succeeds if all its subgoals do. Rules usually contain logic variables, facts rarely do, except for oddities like "equal(X,X).".
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive ?
She told the M.E.N: "The way it's been handled is appalling and the wording of the letter home, saying 'disappointment is a fact of life', was terrible.
Fat is a fact of life for creatures great and small, but researchers know little about why some stem cells transform into fat cells rather than, for example, muscle or bone.
While he waved at racism, citing "the legacy of inequality," he acted as though it were not a present, everyday fact of life.
It's a fact of life: The hotter it gets, the harder it is on your Bradley and MLRS T157I track.
As a reporter, it must have been easy for him to find the lie or face even the ugliest fact of life with not so much detachment as relief.
Although this is not the best health trend, it is a fact of life. So, if we are going to eat finger foods instead of whole meals, we might as well make them as healthful as possible.
Narrated with straightforward simplicity, this novel offers constructive ways to help children deal with a painful fact of life. Phyllis LaMontagne, Spencer, MA
The fact of life is that all of us are created as the children of God and that God stands with us in solidarity and expects us to love one another.
These great storms, with their howling winds and driving rains, are a fact of life in Japan.
It's a fact of life. Five years ago, a small group of high school students in Urbana, Ill., were charged with credit card fraud.
It's a daily fact of life in our middle class nation.
His writings and words indicate that he felt God's existence is an undeniable fact of life, like gravity or love.