HTML Entity for Triple Vertical Bar Right Turnstile (⊪)
What You'll Learn
How to display the Triple Vertical Bar Right Turnstile (⊪) in HTML using named, hexadecimal, decimal, and CSS entity methods. This character is U+22AA (TRIPLE VERTICAL BAR RIGHT TURNSTILE) in the Mathematical Operators block (U+2200–U+22FF)—a specialized logic and formal-notation symbol.
Render it with ⊪, ⊪, ⊪, or CSS escape \22AA. Do not confuse ⊪ with U+22A9 (⊩, double vertical bar right turnstile / ⊫) or U+22A8 (⊨, true / ⊨).
⚡ Quick Reference — Triple Vertical Bar Right Turnstile
U+22AAMathematical Operators block
⊪Hexadecimal reference
⊪Decimal reference
⊪Most readable option
Name Value
──────────── ──────────
Unicode U+22AA
Hex code ⊪
HTML code ⊪
Named entity ⊪
CSS code \22AA
Block Mathematical Operators (U+2200–U+22FF)
Official name TRIPLE VERTICAL BAR RIGHT TURNSTILE
Related U+22A9 = double bar (⊫), U+22A8 = true (⊨)Complete HTML Example
This example demonstrates the Triple Vertical Bar Right Turnstile (⊪) using the named entity, hexadecimal code, decimal HTML code, and a CSS content escape:
<!DOCTYPE html>
<html>
<head>
<style>
#point:after{
content: "\22AA";
}
</style>
</head>
<body>
<p>Using Named Entity: ⊪</p>
<p>Using Hexadecimal: ⊪</p>
<p>Using HTML Code: ⊪</p>
<p id="point">Using CSS Entity: </p>
</body>
</html>🌐 Browser Support
U+22AA is supported in modern browsers; use a font with Mathematical Operators coverage for consistent glyphs:
👀 Live Preview
See the Triple Vertical Bar Right Turnstile (⊪) in logic and formal notation:
🧠 How It Works
Named Entity
⊪ is the HTML named entity for the Triple Vertical Bar Right Turnstile (⊪) — the most readable option in source code.
Hexadecimal Code
⊪ uses the Unicode hexadecimal value 22AA to display the Triple Vertical Bar Right Turnstile symbol.
Decimal HTML Code
⊪ uses the decimal Unicode value 8874 to display the same character.
CSS Entity
\22AA is used in CSS stylesheets in the content property of pseudo-elements like ::before and ::after.
Same visual result
All four methods produce ⊪. Unicode U+22AA. Not double turnstile ⊩ or true ⊨. Previous: Triple Tilde. Next: True.
Use Cases
The Triple Vertical Bar Right Turnstile (⊪) commonly appears in:
Formal logic expressions and proof-theory notation.
Specialized mathematical documents and equations.
Research papers and scholarly publications.
Sequent calculus, proof systems, and logical reasoning.
Logic and mathematics tutorials in HTML.
Unicode and HTML entity guides for logic operators.
💡 Best Practices
Do
- Prefer
⊪for readable HTML source - Use fonts that cover Mathematical Operators (U+2200–U+22FF)
- For complex proofs, consider MathML, MathJax, or KaTeX
- Distinguish ⊪ from double turnstile ⊩ and true ⊨
- Pick one entity style per project for consistency
Don’t
- Confuse ⊪ (triple) with ⊩ (double vertical bar right turnstile)
- Confuse ⊪ with ⊨ (true /
⊨) - Use three vertical bars (
|||) when ⊪ is intended - Put CSS escape
\22AAdirectly in HTML text nodes - Forget UTF-8 (
<meta charset="utf-8">) in your document
Key Takeaways
Four ways to render ⊪ in HTML
⊪ ⊪ ⊪For CSS stylesheets, use the escape in the content property
\22AAUnicode U+22AA — Triple Vertical Bar Right Turnstile
Prefer ⊪ for readability in HTML source
Mathematical Operators block (U+2200–U+22FF)
❓ Frequently Asked Questions
⊪ (named), ⊪ (hex), ⊪ (decimal), or \22AA in CSS content. All produce ⊪.U+22AA (TRIPLE VERTICAL BAR RIGHT TURNSTILE). Mathematical Operators block (U+2200–U+22FF). Hex 22AA, decimal 8874. A specialized logic and formal-notation symbol.⊪ is the most readable option when writing HTML by hand. Numeric codes (⊪ or ⊪) are equally valid. All render ⊪.⊪ is part of the HTML standard and is widely supported across modern browsers. It is the preferred method for displaying ⊪ in HTML documents.Explore More HTML Entities!
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