Math Operator 219

Unicode
U+22DE
Category
Math
HTML Entity
⋞
CSS
\22DE
The ⋞ (Equal To Or Precedes) symbol is a mathematical operator that combines an equals sign with the curly "precedes" bracket. It is primarily used in order theory and set theory to indicate that one element either comes before another in a specific sequence, or is exactly equal to it. While rarely seen outside advanced mathematics, it serves as a crucial notation for defining partial orders and relationships between variables.

How to Type

Windows
Win + . then search, or type 22DE followed by Alt + X in Microsoft Word
macOS
Control + Command + Space then search "equal to or precedes"
Linux
Ctrl + Shift + U then type 22de and press Enter
HTML
⋞ or ⋞

In Programming

In mathematical typesetting environments like LaTeX, this symbol is generated using the \curlyeqprec command from the amssymb package. It is frequently used in formal logic, proof-writing, and mathematical modeling software to define custom relational operators.

Tags

HTML entity LaTeX math U+22DE Unicode math operator \curlyeqprec curly precedes equal or precedes mathematics order theory symbol ordering partial order notation precedes or equal to relation sequence set theory operator

Related Symbols