Re: Mathematical exist and forall in Unicode

From: Philippe Verdy (verdy_p@wanadoo.fr)
Date: Wed Dec 31 2003 - 06:28:12 EST

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    From: "Mirek" <midge@wp.pl>
    > No, they cannot be glyph variants. There is very big different in usage.
    > Those A,E shapes are _linear_ in form, the V-like symbols ARE NOT. The
    > condition after A,E symbol is written AFTER the symbols and in the V
    > standard the condition is usually written _UNDER_ the symbol.

    I forgot this notation too, which looks like combining circumflex and caron
    above the quantified variable... Don't we already have a complete set
    mathematical combining angles?
    If you mean the notation used to note "such that" condition qualifying the
    quantifier, a common notation is to use a normal unqualified quantifier, and
    use an "imply" operator within the quantified expression between the
    condition and the assertion. but if you really want to use a condition below
    the quantifier, the way you note the quatifier itself is not related to the
    notation of the condition (you could as well use the standard reversed-A/E
    glyphs before the quantified variable and write the condition below it, as
    an interlinear notation).

    Do we need special codes then to represent the quantifier with a condition
    below, given that we already have the alternate angle diacritics above, and
    the common A-E-shaped separated glyphs and the alternate V-shaped separated
    glyphs, and interlinear format controls for notations below the baseline?



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