HTML Entity for Does Not Contain As Normal Subgroup (⋫)
What You'll Learn
How to display the Does Not Contain As Normal Subgroup symbol (⋫) in HTML using named, hexadecimal, decimal, and CSS entity methods. This character is U+22EB in the Mathematical Operators block (U+2200–U+22FF) and expresses that one group does not contain another as a normal subgroup in group theory.
Render it with the named entity ⋫, ⋫, ⋫, or CSS escape \22EB in the content property. For the “or equal” variant (⋭), see Does Not Contain As Normal Subgroup Or Equal.
⚡ Quick Reference — Does Not Contain As Normal Subgroup
U+22EBMathematical Operators block
⋫Hexadecimal reference
⋫Decimal reference
⋫Most readable option
Name Value
──────────── ──────────
Unicode U+22EB
Hex code ⋫
HTML code ⋫
Named entity ⋫
CSS code \22EBComplete HTML Example
This example demonstrates the symbol (⋫) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape on a pseudo-element:
<!DOCTYPE html>
<html>
<head>
<style>
#point:after{
content: "\22EB";
}
</style>
</head>
<body>
<p>Using Hexadecimal: ⋫</p>
<p>Using HTML Code: ⋫</p>
<p>Using Named Entity: ⋫</p>
<p id="point">Using CSS Entity: </p>
</body>
</html>🌐 Browser Support
U+22EB is supported in modern browsers; use a font with Mathematical Operators coverage for consistent glyphs:
👀 Live Preview
See the Does Not Contain As Normal Subgroup symbol (⋫) in group-theory notation:
🧠 How It Works
Named Entity
⋫ is the HTML named entity for this group-theory relation symbol — readable and maintainable in source code.
Hexadecimal Code
⋫ uses the Unicode hexadecimal value 22EB. The x prefix indicates hexadecimal format.
Decimal HTML Code
⋫ uses the decimal Unicode value 8939 to display the same character.
CSS Entity
\22EB is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.
Same visual result
All four methods produce: ⋫. Unicode U+22EB is the strict “does not contain as normal subgroup” relation. For ⋭, see Does Not Contain As Normal Subgroup Or Equal.
Use Cases
The symbol (⋫) commonly appears in the following scenarios:
Notation when H is not a normal subgroup of G (e.g. H ⋫ G).
Research papers and textbooks on abstract algebra and normal subgroups.
University algebra courses and online proofs referencing containment.
Mathematical Operators (U+2200–U+22FF) and HTML entity lists.
Web math notation needing the correct Unicode relation character.
HTML entity references for education and research projects.
💡 Best Practices
Do
- Use
⋫for readable HTML source - Use ⋫ for the strict relation; ⋭ for the or-equal variant
- Use fonts that cover Mathematical Operators (U+2200–U+22FF)
- Pair with text, MathML, or ARIA for accessibility
- Pick one entity style per project for consistency
Don’t
- Confuse ⋫ (strict) with ⋭ (or equal)
- Use CSS escape
\22EBinside HTML markup - Assume every browser font renders advanced math glyphs identically
- Mix hex, decimal, and named styles randomly in one file
- Rely on the symbol alone without accessible description
Key Takeaways
Three HTML references all render ⋫
⋫ ⋫ ⋫For CSS stylesheets, use the escape in the content property
\22EBUnicode U+22EB is the strict normal-subgroup non-containment relation
Prefer ⋫ for readability in HTML source
Next: Or Equal variant (⋭)
❓ Frequently Asked Questions
⋫ (named), ⋫ (hex), ⋫ (decimal), or \22EB in CSS content. All produce ⋫.U+22EB (hex 22EB, decimal 8939) in the Mathematical Operators block. It means “does not contain as normal subgroup” (strict).U+22EB, ⋫) is the strict relation. ⋭ (U+22ED) is “does not contain as normal subgroup or equal.” Use the entity that matches your notation.⋫ is the named entity for U+22EB (⋫).Explore More HTML Entities!
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