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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: [About Unicode] Why the symbol LOGICAL NOT is missingfrom
 David Carlisle wrote: >>I've never heard of those... >> >> > >I take it you are not a mathematician. > >I don't read Arabic (or Hebrew or Russian or Chinese or several other >languages that don't use a latin alphabet), so I wouldn't >comment on the usability of the symbols used in those languages. >mathematics uses a very rich alphabet, perhaps you don't read >mathematics, which is fine, but in that case you probably shouldn't >comment on the usability of its alphabet. > > >for example > >http://www.unicode.org/charts/PDF/U2200.pdf > >(the upside down A for "forall" is the first character on that chart) > > > > >>it's not so much about like or dislike... but rather doing markup in such >>a way that the xml can easily handle what we do most... >> >> > >It's odd that you should say that as I thought you were proposing a data >format that looked a bit like XML but unable to be read by XML parsers >due to unescaped &'s?. > > > >>and for many that is transporting business data around the place. >> >> > >the original poster gave no indication that was what he was doing. >It was a perfectly reasonable question. >he had used LOGICAL AND and LOGICAL OR (which by the way look like ^ and >v more or less) presumably in a mathematical expression and was looking >for the not operator so searched for it (in vain) under the name >LOGICAL NOT which wasn't a bad guess. But the Unicode names of >characters (even characters used for expressing logic) have more to do >with history than logic and so this character is called NOT SIGN >so he didn't find it, hence the posted question. > > it always existed in ebcdic so i would have been very surprised if it couldn't be found..... >David >(Co chair of the W3C Math Interest Group, and co editor of the MathML >spec, so I have an interest in using Mathematical symbols in XML >documents:-) > > >________________________________________________________________________ >This e-mail has been scanned for all viruses by Star. The >service is powered by MessageLabs. For more information on a proactive >anti-virus service working around the clock, around the globe, visit: >http://www.star.net.uk >________________________________________________________________________ > >----------------------------------------------------------------- >The xml-dev list is sponsored by XML.org <http://www.xml.org>, an >initiative of OASIS <http://www.oasis-open.org> > >The list archives are at http://lists.xml.org/archives/xml-dev/ > >To subscribe or unsubscribe from this list use the subscription >manager: <http://www.oasis-open.org/mlmanage/index.php> > > >!DSPAM:422850ac215881471720634! > > > begin:vcard fn:Rick Marshall n:Marshall;Rick email;internet:rjm@z... tel;cell:+61 411 287 530 x-mozilla-html:TRUE version:2.1 end:vcard 
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