What ⋑ means
It marks a double-superset relation between sets.
A superset contains every element of another set; a strict superset also has at least one extra element. ⋑ marks a double-superset relation, but “double” alone does not tell you whether strictness is intended; follow the author’s definitions.
A 2003 MathML entity table—a list of named symbols for a web format used to write mathematics—places ⋑ beside and other superset operators. This records the notation by 2003; it does not date its origin.
Formal set notation; its meaning may be unclear outside a mathematical context.
Do not replace it with unless the author defines them as equivalent.
Don't confuse it with
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Questions people ask
1Why does ⋑ look different in different fonts?
It can: fonts draw this mathematical glyph with different shapes, and right-to-left text layout may mirror it as .
More like this
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How to type or find ⋑
- Search it as
- double superset symbol · superset sign · set inclusion · strict superset · proper superset · LaTeX Supset · HTML Supset
- Shows up in
- Anything that takes text · its shape is whatever your font draws
⋑\22D1\Supset.⋑ or ⋑, or the hexadecimal reference ⋑.Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.