humour
(TMRC) For any story, in any group of people there will be at least one person who has not heard the story. A refinement of the theorem states that there will be *exactly* one person (if there were more than one, it wouldn't be as bad to re-tell the story). The name of this theorem is a play on a fundamental theorem in calculus.
[Jargon File]
(1994-12-16)