≡

Identical To

Unicode
U+2261
Category
Math
HTML Entity
≡
CSS
\2261
The Identical To symbol (≡), featuring three parallel horizontal lines, is a mathematical operator used to show that two expressions are perfectly equivalent or congruent. Beyond formal mathematics and logic, web developers and designers frequently use it as the "hamburger menu" icon to denote a collapsible navigation menu in user interfaces. It also occasionally appears in chemistry to represent a triple bond between atoms.

How to Type

Windows
Alt+8801 or Win+. then search "identical"
macOS
Control+Command+Space then search "identical to"
Linux
Ctrl+Shift+U then 2261
HTML
≡ or ≡

In Programming

While most programming languages use multiple standard equals signs (like === in JavaScript) to evaluate strict equality, the ≡ character is heavily used in LaTeX via the \equiv command for mathematical typesetting.

Read full meaning article

Tags

congruent equivalence hamburger menu icon mathematics menu button symbol modular modular arithmetic nav menu icon three bar icon three horizontal lines three lines icon triple bar triple bar symbol triple bond chemistry

Related Symbols

± Plus Minus Sign × Multiplication Sign ÷ Division Sign ≠ Not Equal To ≈ Approximately Equal To ∞ Infinity √ Square Root ∑ Summation ∫ Integral π Pi ≤ Less Than or Equal To ≥ Greater Than or Equal To