Trying to group up different multi line formulas and text that I have to make space on the page, my first thought was to place them as a cell in a table, but trying to do that naively does not work
\begin{tabular}{l l}
\textbf{Removing Left Recursion}
$A \rightarrow A \alpha\ |\ \beta$\\
then\\
$A \rightarrow \beta A^{'}$\\
$A \rightarrow \alpha A^{'}\ |\ \epsilon$\\
&
\textbf{Left Factor}
$A \rightarrow \alpha \beta_{1}\ |\ \alpha \beta_{2}$\\
then\\
$A \rightarrow \alpha \beta^{'}$\\
$\beta^{'} \rightarrow \beta_{1}\ |\ \beta_{2}$
\\
\end{tabular}
How can I group these things up to take less space?