Math Operator 101

Unicode
U+2268
Category
Math
HTML Entity
≨
CSS
\2268
The Less-Than But Not Equal To symbol (≨) represents a strict mathematical inequality. It features a standard less-than sign positioned above a struck-through equals sign, explicitly confirming that the left value is smaller than the right and absolutely cannot be equal. While the standard `<` sign serves a similar purpose, mathematicians use this specific symbol in advanced formulas or formal logic to heavily emphasize a strict boundary.

How to Type

Windows
Type 2268 then Alt+X (in Word), or press Win + . and browse the math symbols section
macOS
Control+Command+Space, then search "less-than but not equal"
Linux
Ctrl+Shift+U, type 2268, then press Enter
HTML
&#x2268; or &lneqq;

In Programming

While standard programming languages simply use the `<` operator for strict inequalities, this symbol is frequently used in LaTeX (via `\lneqq`) and MathML to render formal equations.

Tags

comparison formal math inequality less than not equal less than not equal to sign mathematics order theory symbol ordering strict inequality strict less than symbol strictly less than ≨ HTML entity ≨ symbol ≨ vs < ≨ vs ≤

Related Symbols