1.20.2 Math

<..configure ooffice-mml latex..>+
 \Configure{[]}
    {\Configure{@math}{<.block display.>}\IgnorePar
     \ifvmode\EndP
     \else\EndP \HCode{<!--tex4ht:inline-->}\fi
     \HCode{<text:p text:style-name="display-math">}%
     \CenteredFrametrue \DviMath \CenteredFramefalse
     $$\DisplayMathtrue}
    {$$\EndDviMath\HCode{</text:p>}\ShowPar\par
     {\csname HCondtrue\endcsname\noindent}}
    {}
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<..configure ooffice tex4ht..>+
 \def\mml:class#1"#2"{ }
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<..oo2 mml tex4ht..>+
 \Configure{$$}
    {\Configure{@math}{<.block display.>}\IgnorePar
     \ifvmode\EndP
     \else\EndP \HCode{<!--tex4ht:inline-->}\fi
     \HCode{<text:p text:style-name="display-math">}%
      \CenteredFrametrue \DviMath \CenteredFramefalse }
    {\EndDviMath
      \HCode{</text:p>}
      \ShowPar\par
     {\csname HCondtrue\endcsname\noindent}}
    {\DisplayMathtrue}
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<..configure ooffice-mml rlbabel..>
 \Configure{[]}
    {\Configure{@math}{<.block display.>}\IgnorePar
     \ifvmode\EndP
     \else\EndP \HCode{<!--tex4ht:inline-->}\fi
     \HCode{<text:p text:style-name="display-math">}%
      \CenteredFrametrue \DviMath \CenteredFramefalse
     $$\DisplayMathtrue}
    {$$\EndDviMath\HCode{</text:p>}\ShowPar\par
     {\csname HCondtrue\endcsname\noindent}}
    {}
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<..configure ooffice-mml tex4ht..>+
 \NewConfigureOO{display-math}
 \ConfigureOO{display-math}
    {<style:style style:name="display-math"
          style:family="paragraph"
          style:parent-style-name="Text-body">\Hnewline
       <style:paragraph-properties
          fo:text-align="center"
          style:auto-text-indent="false"
          style:justify-single-word="false"/>\Hnewline
     </style:style>\Hnewline}
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