Arrows in LaTeX

Arrows appear in limits, implications, mappings and reaction equations. A single-line arrow is the regular one, a double-line arrow means implication. Add a label above an arrow with \xrightarrow.

\rightarrow \quad \leftarrow \quad \leftrightarrow \quad \mapsto

p \Rightarrow q, \quad p \Leftrightarrow q

A \xrightarrow{\text{heating}} B

\mathrm{N_2 + 3H_2} \rightleftharpoons \mathrm{2NH_3}

Common mistakes

• Typing -> and => instead of commands: in math mode they are set as separate symbols.

See also

• Math symbols in LaTeX
• Chemical formulas in LaTeX
• Limit in LaTeX