⊔

Math Operator 145

Unicode
U+2294
Category
Math
HTML Entity
⊔
CSS
\2294
The ⊔ (Square Cup) symbol is a mathematical operator primarily used in set theory and algebra to represent a disjoint union or coproduct. Visually distinct from the standard curved union symbol (∪), it specifically indicates that the sets being combined do not share any overlapping elements. While mostly found in complex mathematical equations or type theory, it also occasionally appears online in text-based kaomoji to represent an open, square mouth.

How to Type

Windows
Type 2294 then Alt+X in Microsoft Word, or press Win + . and search for 'square cup'
macOS
Control+Command+Space then search 'square cup'
Linux
Ctrl+Shift+U then 2294
HTML
⊔ or ⊔

In Programming

In LaTeX, this symbol is generated using \sqcup and is widely used in type theory, lattice theory, and to define disjoint sums in computer science documentation.

Read full meaning article

Tags

LaTeX \sqcup U+2294 abstract algebra coproduct symbol join join operator lattice least upper bound lub mathematics square cup square cup copy paste type theory unicode math symbol union

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