Using breqn in unnumbered equation in LyX

Question

I finally found a way to use automatic line breaking in long math formulas in LyX from the last post in:

http://stackoverflow.com/questions/2904807/lyx-breaking-long-formula-lines

I soon realized (when I was making beamer class presentations) that my formula was numbered in the generated PDF. Is there a way to get rid of this numbering without ERT?

Answer 1

In the LaTeX preamble, after \usepackage{breqn} and the stuff from the answer I assume you were referring to (not the stuff in the comment), add

\renewcommand\[{\begin{equation*}}
\renewcommand\]{\end{equation*}}