Protosem package in math-mode

Question

In the list of the symbols there is a table n. 412: protosem Proto-Semitic Characters. Is it possibile to use these characters in math-mode?
documentclass[a4paper,12pt]{article}
usepackage{protosem}
begin{document}
textproto{Aayin}
end{document}

Here there is a tentative:
   documentclass[a4paper,12pt]{article}

usepackage{amsmath}
    usepackage{protosem}
    usepackage{graphicx}
    newcommand{disgiunt}{rotatebox[origin=c]{180}{Avav}}
    begin{document}
    textproto{Avav} it is only in text mode. But in math-mode you can have $Cdisgiunt D$
    end{document}

egreg · Accepted Answer

The answer is to use text in order that the symbol changes size in subscripts or superscripts and textproto{Avav}.
documentclass[a4paper,12pt]{article}

usepackage{amsmath}
usepackage{protosem}
usepackage{graphicx}

newcommand{disjoint}{%
  mathrel{%
    text{rotatebox[origin=c]{180}{textproto{Avav}}}%
  }%
}

begin{document}

$Cdisjoint D_{Cdisjoint D}$

end{document}

Alternatively, rotate multimap from amssymb.
documentclass[a4paper,12pt]{article}

usepackage{amsmath}
usepackage{amssymb}
usepackage{graphicx}

newcommand{disjoint}{%
  mathrel{%
    text{rotatebox[origin=c]{-90}{$multimap$}}%
  }%
}

begin{document}

$Cdisjoint D_{Cdisjoint D}$

end{document}

Protosem package in math-mode

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