# How to type left/right quotes in mathmode?

I want to type "left-quotes" and "right-quotes" in an equation. I tried

$P(x): \forall x \in \mathbb{R}, \, x^2 > 4 \Rightarrow x > 2. $


I get

The end sign is not correct. How to typeset?

\documentclass[preview,border=12pt]{standalone}
\usepackage{amsmath,amssymb}
\begin{document}
$P(x):\text{$\forall x \in \mathbb{R}, \, x^2 > 4 \Rightarrow x > 2$.''}$
\end{document}


## Suggestion

It is just my personal preference.

Add a space after  and before ''.

\documentclass[preview,border=12pt]{standalone}
\usepackage{amsmath,amssymb}
\begin{document}
$P(x):\text{~$\forall x \in \mathbb{R}, \, x^2 > 4 \Rightarrow x > 2$~'' is true.}$
\end{document}


The easiest one will be,

$P(x):\forall x \in \mathbb{R}, \, x^2 > 4 \Rightarrow x > 2."$


Or if you want to use two single quotes,

$P(x): \forall x \in \mathbb{R}, \, x^2 > 4 \Rightarrow x > 2. \text{''}$


The output (for both of them) looks like,

For the later case, the right quotes need to be displayed as text, otherwise the output looks rather weird.

And trying to be pedantic, in LaTeX, opening and closing double quotes are treated as different. Left quotes are coded as  (it will the left-most key on the upper row below ~ in many keyboards). Right quotes are given by the two symbols ' ' (or you may want to use the single symbol "). Thus we have quote, unquote' '. The same goes for single quotes, or quote, unquote'.

You may want to see this for further details.

\documentclass{article}
\usepackage{amsmath,amsfonts}
\begin{document}
$P(x): \forall x \in \mathbb{R}, \, x^2 > 4 \Rightarrow x > 2."$
\end{document}


• But I wouldn't put math in quotes`.
– user11232
Sep 30 '13 at 4:20
• I can not get as your output. Sep 30 '13 at 4:34
• @minthao_2011: Did you run the above code as it is?
– user11232
Sep 30 '13 at 5:19