⊅
Math Operator 130
- Unicode
- U+2285
- Category
- Math
- HTML Entity
- ⊅
- CSS
- \2285
The ⊅ (Not a Superset Of) symbol is a mathematical operator used in set theory to indicate that one set does not contain all the elements of another. Visually, it features the standard superset symbol (⊃) crossed out with a forward slash to negate its meaning. While you will mostly find it in mathematical formulas, academic papers, and logic proofs, it occasionally appears in technical discussions where precise definitions of data collections are required.
How to Type
- Windows
- Alt+8837 or type 2285 followed by Alt+X
- macOS
- Control+Command+Space then search "not a superset"
- Linux
- Ctrl+Shift+U then 2285
- HTML
- ⊃⃒ or ⊅
In Programming
This symbol is primarily used in mathematical typesetting languages like LaTeX (using \nsupset) to render set theory equations. In software development, programmers represent this logic using native methods, such as !setA.issuperset(setB) in Python, rather than inserting the Unicode character directly into the code.
Tags
A not superset of B
HTML ⊅
LaTeX not superset
U+2285
\not\supset
\nsupset
does not contain
exclusion
mathematics
negation
not superset
set theory
set theory negation
type not superset symbol