HTML Entity for Left Normal Factor Semidirect Product (⋉)
Beginner
5 min read
Updated: Sep 2026
1 example
Unicode U+22C9
Definition
What Is the Left Normal Factor Semidirect Product Entity?
Left Normal Factor Semidirect Product (⋉) is the Mathematical Operators character at Unicode U+22C9 (LEFT NORMAL FACTOR SEMIDIRECT PRODUCT). It is commonly used in group theory for a semidirect product whose left factor is normal.
Remember
Character ⋉
Unicode U+22C9
Hex entity ⋉
Decimal ⋉
Named entity ⋉
CSS escape \22C9
Not the same ⋊ (⋊) · × (×)
All of these produce the same glyph: ⋉. Prefer ⋉ when you want an explicit entity.
Using Hex Code: ⋉
Using HTML Code: ⋉
Using Named Entity: ⋉
Using CSS Entity: ⋉
N ⋉ H
How It Works
1. Hex:U+22C9 → ⋉ in HTML. The browser turns it into ⋉.
2. Decimal: same code point as 8905 → ⋉. Same result as hex.
3. Named:⋉ is the HTML5 name for this character.
4. CSS: use \22C9 in content (not an HTML entity). #point::after appends that ⋉ after the paragraph text.
Pitfalls & Tips
Common mistakes when working with Left Normal Factor Semidirect Product.
Look-alikes
⋉ ≠ ⋊ ≠ ×
⋉, ⋊, and ordinary × are different characters.
Name
⋉ ≠ ×
The leading l selects the left-normal semidirect product, not multiplication.
Fonts
Glyph may be missing
Mathematical Operators coverage varies. Test on your target devices or provide a fallback font.
CSS vs HTML
Do not mix escapes
\22C9 belongs in CSS. ⋉ / ⋉ / ⋉ belong in HTML.
A11y
Add nearby words
Pair the glyph with equation text (for example N ⋉ H) or use aria-label when it stands alone.
Semicolon
End references
Always finish with ; — write ⋉, not <imes.
Compatibility
Browser Support
Left Normal Factor Semidirect Product (U+22C9) and its entity forms (⋉, ⋉, ⋉, CSS \\22C9) are supported in all modern browsers. Glyph coverage depends on the font.
✓ Universal encoding
Left Normal Factor Semidirect Product (⋉)
Encode with named, hex, decimal, or CSS escape — or type ⋉ directly in UTF-8 HTML.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerIE 9+
Yes*
U+22C9 / ⋉Full support
Bottom line: Prefer ⋉ for readable HTML. Use \\22C9 only inside CSS content.
Remember
Key Takeaways
Unicode: this symbol is U+22C9 (decimal 8905).
HTML: prefer ⋉ — or use ⋉ / ⋉.
Use ⋉ (named), ⋉ (hex), ⋉ (decimal), or the CSS escape \22C9 in the content property. You can also type ⋉ directly in UTF-8 HTML.
U+22C9 (LEFT NORMAL FACTOR SEMIDIRECT PRODUCT). Hex 22C9, decimal 8905. It belongs to the Mathematical Operators block (U+2200–U+22FF).
Yes. ⋉ is the HTML5 named entity. You can also use ⋉ or ⋉.
Use it in group theory and algebra when you write a semidirect product with the left factor normal (often written N ⋉ H). Prefer ⋉ for readable HTML.
HTML entities (⋉, ⋉, or ⋉) go in markup. The CSS escape \22C9 is used in stylesheets (usually in the content property of ::before/::after). Both render ⋉.
⋊ (U+22CA) is the right normal factor semidirect product. × is the ordinary multiplication sign (U+00D7). ⋉ (U+22C9) is the left-normal semidirect product operator.
🤔
Did you know?
Left Normal Factor Semidirect Product is Unicode U+22C9 (decimal 8905) — LEFT NORMAL FACTOR SEMIDIRECT PRODUCT. HTML5 provides ⋉. Prefer it for readable source. Do not confuse it with ⋊ (U+22CA, right normal factor) or a plain times sign (×).
