Looking for two mathematical characters

From: Patrick Andries (Patrick.Andries@xcential.com)
Date: Mon Jun 16 2003 - 01:43:25 EDT

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    I'm looking for two mathematical characters.

    1) The canonical one-to-one (injective) mapping; is this U+21AA ? Looks like it (no annotation though).

    2) An angle operator (combining mark ?) looking like this _| , where

                          a )
       n| a ) n occurrences of a
    a means a )

    obviously a should all be written on a single line.

    Thanks for any help,


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