HTML Entity for Does Not Contain As Normal Subgroup (⋫)

Beginner
5 min read
Updated: Sep 2026
1 example
Unicode U+22EB

What Is Does Not Contain As Normal Subgroup?

Does not contain as normal subgroup (⋫) is the Unicode character at U+22EB in the Mathematical Operators block. Official name: DOES NOT CONTAIN AS NORMAL SUBGROUP. In group theory, G ⋫ H means G does not contain H as a normal subgroup (strict).

Remember
Character     ⋫
Unicode       U+22EB
Named entity  ⋫
Hex entity    ⋫
Decimal       ⋫
CSS escape    \22EB
Not the same  ⋭ · ⋪ · ⊳

Prefer ⋫ in HTML markup. You can also type ⋫ in UTF-8, or use numeric forms when needed.

Quick Reference

One table for every form you will actually use.

FormCodeWhere it goes
Named entity⋫HTML markup (preferred)
Direct character⋫HTML text (UTF-8)
Hex entity⋫HTML markup
Decimal entity⋫HTML markup
CSS escape\22EBStylesheet content

When to Use Which

SituationUse
Strict: does not contain as normal subgroup⋫ or type ⋫
Or-equal negation⋭ / ⋭
Not a normal subgroup of (left form)⋪ / ⋪
Contains as normal subgroup (positive)⊳ / ⊳
Generated text via ::before / ::aftercontent: "\22EB"

Live Preview

Does not contain as normal subgroup rendered in common math contexts.

Example G ⋫ H
Large glyph ⋫
Compared ⊳   ⋫   ⋭   ⋪
With entities Named: ⋫ | Hex: ⋫ | Decimal: ⋫

Complete HTML Example

One page that shows Does Not Contain As Normal Subgroup with named, hex, decimal, CSS escape, and a typed character. Use View Output or open the live editor.

Named + Hex + Decimal + CSS + Typed

Five ways to produce ⋫, plus a group-theory example.

html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Does Not Contain As Normal Subgroup (⋫) in HTML</title>
  <style>
    #point::after {
      content: "\22EB";
    }
  </style>
</head>
<body>
  <p>Symbol using Named Entity: &nrtri;</p>
  <p>Symbol using Hex Code: &#x22EB;</p>
  <p>Symbol using HTML Code: &#8939;</p>
  <p id="point">Symbol using CSS Entity: </p>
  <p>Typed directly: ⋫</p>
  <p>Example: G &nrtri; H means G does not contain H as a normal subgroup.</p>
</body>
</html>
Try It Yourself

How It Works

1. Named: &nrtri; is the HTML5 name for U+22EB → ⋫. Best default in markup.

2. Hex: U+22EB → &#x22EB; in HTML. Same glyph as the named form.

3. Decimal: same code point as 8939 → &#8939;. Same result as hex and named.

4. CSS: use \22EB in content (not an HTML entity). #point::after appends that ⋫ after the paragraph text.

5. Typed / example: paste ⋫ in UTF-8, or write G &nrtri; H for the strict group-theory relation.

Pitfalls & Tips

Common mistakes when working with Does Not Contain As Normal Subgroup.

⋭

Strict vs or-equal

Use &nrtri; (⋫) for strict. Use &nrtrie; (⋭) when or-equal is intended.

⋪

Left vs right form

⋪ (&nltri;) is “not normal subgroup of.” ⋫ (&nrtri;) is “does not contain as normal subgroup.”

⊳

Positive relation

Do not use ⋫ when you mean contains as normal subgroup — that is ⊳ (&vrtri;).

CSS vs HTML

Do not mix escapes

\22EB belongs in CSS strings. &nrtri; / &#x22EB; / &#8939; belong in HTML.

Fonts

Math font coverage

Some fonts omit U+22EB. Prefer a font with Mathematical Operators coverage for display.

Semicolon

End references

Always finish with ; — write &nrtri;, not &nrtri.

Browser Support

Does not contain as normal subgroup (U+22EB) and its entity forms (&nrtri;, &#x22EB;, &#8939;, CSS \\22EB) are supported in all mainstream browsers. Visible glyphs depend on math font coverage.

✓ Universal support

Does Not Contain As Normal Subgroup (&#x22EB;)

Encode with named, hex, decimal, CSS escape, or type the character — same code point everywhere encoding is supported.

100% Browser coverage
Google Chrome Supported
Yes
Microsoft Edge Supported
Yes
Mozilla Firefox Supported
Yes
Apple Safari Supported
Yes
Opera Supported
Yes
Internet Explorer All versions
Yes
U+22EB / entities Full support

Bottom line: Prefer &nrtri; in HTML. Use &#x22EB; or &#8939; when numeric form is required, and \\22EB only inside CSS content.

Key Takeaways

  • Unicode: does not contain as normal subgroup is U+22EB (decimal 8939) — glyph ⋫.
  • HTML: prefer &nrtri;, or use &#x22EB; / &#8939; / type ⋫.
  • CSS: use \22EB inside content for generated text.
  • Meaning: ⋫ = strict — not ⋭ (or-equal) or ⋪ (left form).

One line: U+22EB → &nrtri; / &#x22EB; / &#8939; / CSS \22EB / type ⋫.

Frequently Asked Questions

Use &nrtri; (named), &#x22EB; (hex), &#8939; (decimal), type ⋫ directly in UTF-8, or the CSS escape \22EB in content. Prefer &nrtri; in normal HTML.
U+22EB (DOES NOT CONTAIN AS NORMAL SUBGROUP). Hex 22EB, decimal 8939. It belongs to the Mathematical Operators block (U+2200–U+22FF).
Yes. Use &nrtri;. Numeric forms &#8939; and &#x22EB; also work.
Use it in group theory and abstract algebra when a group does not contain another as a normal subgroup (strict). For the or-equal negation, use U+22ED (&nrtrie;).
HTML entities (&nrtri;, &#8939;, or &#x22EB;) go in markup. The CSS escape \22EB goes in stylesheet strings (usually content on ::before/::after).
⋫ (U+22EB, &nrtri;) is strict. ⋭ (U+22ED, &nrtrie;) includes or-equal. Use the entity that matches your notation.

Did you know?

Does not contain as normal subgroup is Unicode U+22EB (decimal 8939) — glyph ⋫ in the Mathematical Operators block. HTML5 names it &nrtri;. It is the strict negation of containment as a normal subgroup; the or-equal form is ⋭ (&nrtrie;, U+22ED).

Next: Does Not Contain As Normal Subgroup Or Equal

Learn the HTML entity for the or-equal form (U+22ED).

Does Not Contain Or Equal tutorial →

About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

  • Experience 12 years building web and cloud systems
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I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

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