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> imo that's an ugly character, the "¬" symbol. That symbol would be immediately understoood by countless mathematicians all over the world whereas unexpected english words in the middle of an expression would make formulae harder to understand even if English is your spoken language, and perhaps unintelligible if it is not. I suppose you don't like an upside down A for "for all" or a backwards E for "there exists" either? David ________________________________________________________________________ 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 ________________________________________________________________________
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