From: John Cowan (cowan@mercury.ccil.org)
Date: Thu May 29 2003 - 09:06:12 EDT
Kent Karlsson scripsit:
> Sorry for picking on every statement you make, but there is no such thing
> as a "null set" or a "null set symbol" (null and empty aren't the same).
"Null set" is quite common, though not as common as "empty set":
see http://mathworld.wolfram.com/EmptySet.html , which says they are
equivalent terms.
> I have yet to see anyone quote a linguistic texts that *explicitly* says that
> they use the empty set symbol for this "empty" linguistic entity.
Well, a linguistics paper I read yesterday (citation on request) definitely
used the slashed-circle, aka empty set sign, to represent a nonexistent
element (in this case an ellipsized word).
-- One art / There is John Cowan <jcowan@reutershealth.com> No less / No more http://www.reutershealth.com All things / To do http://www.ccil.org/~cowan With sparks / Galore -- Douglas Hofstadter
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