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\equiv is the triple bar: identically equal, or congruent modulo n in number theory. Geometry uses \cong for congruent shapes. For 'defined as', := or \triangleq are both common.
All ways to write it
| Command | Use | Package | Copy |
|---|---|---|---|
\equiv | identical / congruent modulo, ≡ | none | |
\cong | congruent figures, ≅ | none | |
\triangleq | defined as, ≜ | amssymb | |
:= | defined as | none |
Commands marked with a package need that \usepackage line in a LaTeX document.
Example
a \equiv b \pmod{n}a and b leave the same remainder on division by n.
Questions
How do I write mod?
\pmod{n} gives (mod n) with parentheses and spacing; \bmod gives a binary mod with no parentheses.
Related symbols
- Approximately ≈
\approx - Not equal ≠
\neq
Using equivalent in Confluence
Confluence Cloud has no built-in LaTeX. With LaTeX Math for Confluence you add a math macro to any page, type \equiv and it renders inline or as a block, with a live preview while you edit. Every command on this page renders there without extra packages.