Cong in LaTeX

The LaTeX command for cong (≅) is \cong — congruent / isomorphic.

\cong

Relations · Unicode ≅ (U+2245) · no package needed

How to type Cong

Write \cong inside math mode — that is, between $…$ for inline math or in a \[ … \] / equation block for display math. It is part of core LaTeX math, so no extra package is required.

Example

$a \cong b$

a \cong b

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Related Relations symbols

=\neq<>\leq\geq\leqslant\geqslant\ll\gg\equiv\sim\simeq\approx

Search all 380+ LaTeX symbols →

FAQ

How do you write cong (≅) in LaTeX?

Use \cong in math mode — it needs no extra package. For example, $a \cong b$.

Which package provides \cong?

None — \cong is built into LaTeX's math mode, so no extra package is required.

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