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\makeatletter\newenvironment{myalign*}{%\setlength{\mathindent}{0pt}%\setlength{\abovedisplayskip}{-\baselineskip}%\setlength{\abovedisplayshortskip}{\abovedisplayskip}%\start@align\@ne\st@rredtrue\m@ne}%{\endalign}\makeatother