origin of "arity"

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Article #2340

#2340

From: David Wahl
Date: Wed, 19 Jun 1991 19:31

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The word "arity" came up during lunch today in our group and our
resident mathematician asked whether the word was invented by
logic programming people or whether it was borrowed from another
field.  We looked it up in both a standard college English dictionary
and in a scientific and technical English dictionary and couldn't 
find the word "arity" in either of them.

Does anyone know where the origin of the word "arity"?

Thanks,
Dave Wahl
===================================================================
Digital Equipment Corporation
Database Systems Research (CXN1/2)
1175 Chapel Hills Drive
Colorado Springs, CO 80920-2080

Tel 719-260-2758
Email: wahl@cookie.enet.dec.com
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% The opinions expressed are my own, not Digital's.               %
% "I suppose you would have to be very well educated to get that  %
%  kind of job."                                                  %
% "Extremely well educated.  Typing, everything."                 %
% -- Donald Barthelme, "The Emerald"                              %
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From: wahl@shodha.enet.dec.com (David Wahl)
Newsgroups: comp.lang.prolog
Subject: origin of "arity"
Message-ID: <3405@shodha.enet.dec.com>
Date: 19 Jun 91 19:31:57 GMT
Organization: Digital Equipment Corp. - Colorado Springs, CO.
Lines: 26