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Path: utzoo!watmath!clyde!burl!ulysses!allegra!princeton!tilt!gabriel
From: gabriel@tilt.UUCP (Gabriel Robins)
Newsgroups: net.jokes
Subject: Original Joke
Message-ID: <83@tilt.UUCP>
Date: Sun, 29-Apr-84 11:35:23 EDT
Article-I.D.: tilt.83
Posted: Sun Apr 29 11:35:23 1984
Date-Received: Mon, 30-Apr-84 00:54:53 EDT
Organization: Princeton Univ. EECS
Lines: 3

When an instructor is not sure what grade to give a student, he gives the
student the grade "I".  That is to say, undecidability implies incompleteness.