A modulus of 0 makes no sense to a non-mathematically trained person. Your explanation of "mod" meaning "mapping" makes no sense the way you wrote it, either.
Who cares what Knuth said, anyway? His name should not add any weight to his arguments.
Every definition of modulus that turned up in a quick scan of mine uses the word "remainder" and implies division by the modulus.
Update: Clarified and toned down my first paragraphIn reply to Re: 0 illegal modulus?
by mugwumpjism
in thread 0 illegal modulus?
by nella
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