HTML Entity for Wreath Product (≀)
What You'll Learn
How to display the Wreath Product symbol (≀) in HTML using hexadecimal, decimal, named entity, and CSS escape methods. This character is U+2240 (WREATH PRODUCT) in the Mathematical Operators block (U+2200–U+22FF)—the standard notation for the wreath product operation in group theory and abstract algebra.
Render it with ≀, ≀, ≀, or CSS escape \2240. For complex formulas, consider MathML or LaTeX rendering in addition to HTML entities.
⚡ Quick Reference — Wreath Product
U+2240Mathematical Operators
≀Hexadecimal reference
≀Decimal reference
≀Most readable option
Name Value
──────────── ──────────
Unicode U+2240
Hex code ≀
HTML code ≀
Named entity ≀
CSS code \2240
Meaning Wreath product (group theory)
Related U+22BB = XOR (⊻, ⊻)
Block Mathematical Operators (U+2200–U+22FF)Complete HTML Example
A simple example showing the Wreath Product symbol (≀) using hexadecimal code, decimal HTML code, named entity, and a CSS content escape:
<!DOCTYPE html>
<html>
<head>
<style>
#op:after{
content: "\2240";
}
</style>
</head>
<body>
<p>Wreath Product (hex): G ≀ H</p>
<p>Wreath Product (decimal): G ≀ H</p>
<p>Wreath Product (named): G ≀ H</p>
<p id="op">Wreath Product (CSS): G H</p>
</body>
</html>🌐 Browser Support
U+2240 and the ≀ named entity are widely supported in modern browsers:
👀 Live Preview
See the Wreath Product symbol (≀) in mathematical context:
🧠 How It Works
Hexadecimal Code
≀ uses the Unicode hexadecimal value 2240 to display the Wreath Product symbol. The x prefix indicates hexadecimal format.
Decimal HTML Code
≀ uses the decimal Unicode value 8768 to display the same character.
Named Entity
≀ is the semantic named entity for U+2240—the easiest to read in source HTML.
CSS Entity
\2240 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.
Same visual result
All four methods produce the glyph: ≀. Unicode U+2240 is WREATH PRODUCT in the Mathematical Operators block (U+2200–U+22FF).
Use Cases
The Wreath Product symbol (≀) is commonly used in:
Wreath product operations in group theory (e.g. G ≀ H).
Textbooks, lecture notes, and research papers on permutation groups.
Educational content covering wreath products and related constructions.
Mathematical publications and preprints requiring standard operator notation.
Documentation for computer algebra systems and algorithm descriptions.
Courses and tutorials explaining wreath product definitions and examples.
Pair ≀ with clear text or aria-label for non-visual readers.
💡 Best Practices
Do
- Prefer
≀in HTML for readability when supported - Use
≀or≀when you need explicit numeric references - Use fonts that support Mathematical Operators glyphs
- Consider MathML or LaTeX for complex multi-line formulas
- Pick one entity style per project for consistency
Don’t
- Confuse ≀ (wreath product) with similar math operators in U+2200–U+22FF
- Put CSS escape
\2240in HTML text nodes - Rely on the glyph alone without context in educational content
- Mix entity styles randomly in one file
- Assume every font renders ≀ clearly at small sizes
Key Takeaways
Four ways to render ≀ in HTML and CSS
≀ ≀Named entity for readable markup
≀CSS content escape
\2240Unicode U+2240 — WREATH PRODUCT (group theory)
Previous: Won Sign (₩) Next: Writing Hand (✍)
❓ Frequently Asked Questions
≀ (hex), ≀ (decimal), ≀ (named entity), or \2240 in CSS content. All four methods render ≀.U+2240 (WREATH PRODUCT). Mathematical Operators block U+2200–U+22FF. Hex 2240, decimal 8768. Standard notation for the wreath product in group theory.≀, ≀, or ≀) go directly in markup. The CSS escape \2240 is used in stylesheets, typically in the content property of pseudo-elements. Same visual result, different layers of the stack.≀ is the named HTML entity for U+2240 (≀) and is more readable than numeric codes in source markup.Explore More HTML Entities!
Discover 1500+ HTML character references — math operators, symbols, and more.
About the author
8 people found this page helpful