I would like to write an integral with a big lower limit. I am using
\documentclass{article}
\begin{document}
\[\int\limits_{\mbox{This is a\\ large limit}}xdx\]
\end{document}
My output is

How can I split this rahter big limit? One idea would be to write it as a matrix but I supposse there must an easiest way.
\substackof theamsmathpackage is your friend. – egreg Mar 28 '13 at 17:28