⊏

Math Operator 140

Unicode
U+228F
Category
Math
HTML Entity
⊏
CSS
\228F
The ⊏ symbol, formally known as the "Square Image Of" operator, is a mathematical symbol used primarily in set theory and formal logic. It serves as a square-cornered counterpart to the standard subset symbol (⊂), often indicating a specific type of subset relationship or partial ordering in advanced mathematical texts. While rarely seen outside academic writing, it occasionally pops up in custom typography or text-based art due to its clean, geometric shape.

How to Type

Windows
Win + . then search "square image of"
macOS
Control + Command + Space then search "square image"
Linux
Ctrl + Shift + U then type 228f
HTML
⊏ or ⊏

In Programming

While not used in standard programming syntax, the ⊏ symbol is frequently utilized in mathematical typesetting languages like LaTeX (using the command \sqsubset) to render equations for formal logic or set theory.

Read full meaning article

Tags

LaTeX \sqsubset U+228F lattice mathematics ordering ordering relation partial order symbol relation square image of square image of copy paste square subset subset square bracket text art unicode math symbol

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