Math & Science ⇒ Bracket over Array Environment

[danielwoods911]

I've seen some solutions on creating an bracket over an array environment, but in fact they do not work well. I have a formula figure like this:

Code: Select all

/begin{figure}
\[
\begin(array}{ll}
\prooftree
   \begin{array}{c}
   ....FORMULA A....
   \end{array}
\justifies
   ...FORMULA B...
\endprooftree
\]
/end{figure}

How can I use \overbracket over the formula:
FORMULA A
FOMURLA B

[cgnieder]

You question is rather unclear... this works well:

Code: Select all

\documentclass{article}
\usepackage{mathtools}

\begin{document}

\[
\overbracket{
 \begin{array}{c}
  FORMULA A
 \end{array}
}
\]

\end{document}