[OS X TeX] multiline bracket in a table, text in math mode?

[Claus Gerhardt]

I defined a new environment rcases (with a right brace), needs amsmath.

\makeatletter
\newenvironment{rcases}{%
   \matrix at check\rcases\env at rcases
}{%
   \endarray\right\rbrace%
}
\def\env at rcases{%
   \let\@ifnextchar\new at ifnextchar
\left.
   \def\arraystretch{1.2}%
   \array{@{}l@{}l@{}}%
}\makeatother


Use it as in

\begin{equation}
\text{il}\quad
\begin{rcases}
a\\
b\\
c
\end{rcases}
\quad \text{text}
\end{equation}


Claus
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