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Arrows in LaTeX

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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.

Basic arrows

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\rightarrow \quad \leftarrow \quad \leftrightarrow \quad \mapsto
→←↔↦\rightarrow \quad \leftarrow \quad \leftrightarrow \quad \mapsto

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Implication and equivalence

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p \Rightarrow q, \quad p \Leftrightarrow q
p⇒q,p⇔qp \Rightarrow q, \quad p \Leftrightarrow q

Arrow with a label

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A \xrightarrow{\text{heating}} B
A→heatingBA \xrightarrow{\text{heating}} B

Reversible reaction

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\mathrm{N_2 + 3H_2} \rightleftharpoons \mathrm{2NH_3}
N2+3H2⇌2NH3\mathrm{N_2 + 3H_2} \rightleftharpoons \mathrm{2NH_3}

Common mistakes

See also

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