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 <[EMAIL PROTECTED]> No less / No more http://www.reutershealth.com All things / To do http://www.ccil.org/~cowan With sparks / Galore -- Douglas Hofstadter
