# Define variables on the right side in a displaymath environment

In

\begin{displaymath}
P_1, \dots P_m \leftarrow Q_1, \dots, Q_n (m, n \ge 0)
\end{displaymath}


I would like to introduce a bit of spacing before (m, n \ge 0). Maybe put it on the right side? I don't know what would look best or be most standard. But I do know that I need some spacing.

• Have you tried inserting the instructions \quad or \qquad before (m, n \ge 0)? – Mico Dec 16 '13 at 16:37
• Have a look at Mathmode and its section on spacing. – Johannes_B Dec 16 '13 at 16:38
• @Mico: No, but two \qquads to add the spacing looks pretty nice. – bonzaibanzai Dec 16 '13 at 17:35
• @Johannes_B: I'll look into it if I need to write something more math heavy in the future, thanks for the tip! – bonzaibanzai Dec 16 '13 at 17:36

I inserted two \qquad thanks to Mico's comment. It looks pretty nice.

\begin{displaymath}
P_1, \dots, P_m \leftarrow Q_1, \dots, Q_n \qquad \qquad (m, n \ge 0)
\end{displaymath}


Becomes:

• Mico, not Micro... – karlkoeller Dec 16 '13 at 18:12
• @karlkoeller - thanks. :-) I seem to remember a case of Marco Daniel's first name being rendered as "Macro." I guess this site has it all... – Mico Dec 16 '13 at 19:04
• I'd recommend just one qquad, you will soon run out of space using a double qquad, and using just qquad gives more consistency with more equations – daleif Dec 16 '13 at 19:07

If you want them right-aligned, a quick and dirty way is to abuse the equation-numbering facility available in LaTeX. Use the \tag macro (there is also the starred version if you don't want the brackets).