[math]\displaystyle{ \newenvironment{rcases} {\left.\begin{align*}} {\end{align*}\right\rbrace} \newenvironment{lcases} {\left\lbrace\begin{align*}} {\end{align*}\right.} }[/math]
This template allows LaTeX representations of cases by defining operators in advance to avoid the need to manually enter brackets.
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