Material Equivalence (≡, ⇔) Symbol in LaTeX

In this tutorial, we will learn how to write material equivalence symbol in LaTeX.

Material equivalence can be represented by a lot of different symbols.

I will show most of the symbols one by one.

Triple Bar Equal Symbol – LaTeX

The triple bar symbol can be used as material equivalence as well.

\documentclass{article}

\begin{document}
P$\equiv$Q
\end{document}

Output:

Left right arrow as Material Equivalence

We can use the command: \Leftrightarrow

to show material equivalence symbol.

\documentclass{article}

\begin{document}
P$\Leftrightarrow$Q
\end{document}

Output:

Some other forms:

\documentclass{article}

\begin{document}
P$\longleftrightarrow$Q

P$\leftrightarrow$Q
\end{document}

Output:

Long left right arrow in LaTeX

Now I am going to use this command: \Longleftrightarrowin math mode as in previous ones.

\documentclass{article}

\begin{document}
P$\Longleftrightarrow$Q
\end{document}

Output:

Also read:

• How to get right arrow symbol in LaTeX text mode?
• How to write Position vector (arrow) in LaTeX?