How to use left right arrow(↔) symbol in LaTeX?

Symbol/UnicodeLeft Right Arrow/U+2194
Type of symbolArrow
Package (requirement)No
ArgumentNo
Latex command\leftrightarrow
Example\leftrightarrow → ↔

Left Right Arrow is a symbol used in chemical equations. You need to use the \leftrightarrow command to print this symbol in a latex document.

\documentclass{article}
\begin{document}
   \[ a + b \leftrightarrow c \]
   \[ c \leftrightarrow d + c \]
   \[ a + b \leftrightarrow d + c \]
\end{document}

Output :

Use left right arrow in latex.

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