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The Jargon File, Version 4.2.2, 20 Aug 2000 by Various
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The `-P' convention

Turning a word into a question by appending the syllable `P'; from the
LISP convention of appending the letter `P' to denote a predicate (a
boolean-valued function). The question should expect a yes/no answer,
though it needn't. (See [94]T and [95]NIL.)
At dinnertime:

Q: ``Foodp?''

A: ``Yeah, I'm pretty hungry.'' or ``T!''


At any time:

Q: ``State-of-the-world-P?''

A: (Straight) ``I'm about to go home.''

A: (Humorous) ``Yes, the world has a state.''


On the phone to Florida:

Q: ``State-p Florida?''

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