HTML Entity for Not Square Image Of Equal To (⋢)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+22E2
HTML entity for Not Square Image Of Equal To symbol (U+22E2) — named nsqsube, hex, decimal, and CSS tutorial

What You'll Learn

How to display the Not Square Image Of Equal To symbol (⋢) in HTML using named, hexadecimal, decimal, and CSS escape methods. This operator negates the “square image of or equal” relation used in order theory and formal mathematics.

This character is U+22E2 (NOT SQUARE IMAGE OF OR EQUAL TO) in the Mathematical Operators block (U+2200–U+22FF). Render it with the named entity ⋢, ⋢, ⋢, or CSS escape \22E2. Compare with Not Equal To (≠, ≠) and the paired symbol square image of or equal to (⊑, ⊑).

⚡ Quick Reference — Not Square Image Of Equal To

Unicode U+22E2

Mathematical Operators

Hex Code ⋢

Hexadecimal reference

HTML Code ⋢

Decimal reference

Named Entity ⋢

HTML5 named entity for U+22E2

Reference Table
Name           Value
────────────   ──────────
Unicode        U+22E2
Hex code       ⋢
HTML code      ⋢
Named entity   ⋢
CSS code       \22E2
Meaning        Not square image of or equal to
Related        U+2291 = square image of or equal (⊑, ⊑)
               U+22E3 = not square original of or equal (⋣, ⋣)
               U+2260 = not equal to (≠, ≠)
Block          Mathematical Operators (U+2200–U+22FF)
1

Complete HTML Example

A simple example showing ⋢ using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point::after{
   content: "\22E2";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x22E2;</p>
<p>Symbol (decimal): &#8930;</p>
<p>Symbol (named): &nsqsube;</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

U+22E2 is widely supported wherever Unicode Mathematical Operators render correctly:

Chrome1+
Firefox1+
Safari1+
Edge12+
Opera4+
Android4.4+
iOS Safari1+

👀 Live Preview

See ⋢ in order theory and relation notation:

Relation a ⋢ b means a is not a square image of b and a ≠ b.
Large glyph ⋢
Negation pair ⊑ square image or equal   ⋢ not square image or equal
Example x ⋢ y ⇒ ¬(x ⊑ y)
Entity refs &nsqsube; &#x22E2; &#8930; \22E2

🧠 How It Works

1

Named Entity

&nsqsube; is the HTML named entity for U+22E2—the most readable choice when writing mathematical relation markup.

HTML markup
2

Hexadecimal Code

&#x22E2; uses the Unicode hexadecimal value 22E2 to display the not-square-image-of-equal symbol.

HTML markup
3

Decimal HTML Code

&#8930; uses the decimal Unicode value 8930 to display the same character.

HTML markup
4

CSS Entity

\22E2 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.

CSS stylesheet
=

Same visual result

All four methods produce: ⋢. Unicode U+22E2 in Mathematical Operators (U+2200–U+22FF).

✅

Use Cases

The ⋢ symbol (&nsqsube;) is commonly used in:

🔢 Order theory

Negating the square-image-of-or-equal relation between elements.

📚 Relation algebra

Formal definitions and proofs involving partial orders and relations.

📐 Math expressions

Textbooks, papers, and lecture notes on lattice and order notation.

💻 CS education

Discrete math and formal methods courses with web-based notation.

🎓 Online courses

Interactive math modules covering relations and partial orders.

🌐 Reference guides

Unicode charts and HTML entity documentation for math symbols.

💡 Best Practices

Do

  • Use &nsqsube; for readable relation markup
  • Distinguish ⋢ from ≠ (not equal, &ne;) and from ⋣ (not square original of or equal)
  • Pair ⋢ with plain-language description on first use
  • Use numeric references in generated or XML-first workflows
  • Serve pages with UTF-8 (<meta charset="utf-8">)

Don’t

  • Confuse ⋢ with ≠ (&ne;, general not equal)
  • Confuse &nsqsube; with &nsqsupe; (⋣, opposite orientation)
  • Use padded Unicode notation like U+022E2—the correct value is U+22E2
  • Put CSS escape \22E2 in HTML text nodes
  • Use \022E2 in CSS—the correct escape is \22E2

Key Takeaways

1

Three HTML references plus CSS all render ⋢

&#x22E2; &#8930; &nsqsube;
2

For CSS stylesheets, use the escape in the content property

\22E2
3

Unicode U+22E2 — NOT SQUARE IMAGE OF OR EQUAL TO

4

Mathematical Operators block (U+2200–U+22FF)

5

&nsqsube; is the preferred named entity for readable source markup

❓ Frequently Asked Questions

Use &nsqsube; (named), &#x22E2; (hex), &#8930; (decimal), or \22E2 in CSS content. All produce ⋢.
U+22E2 (NOT SQUARE IMAGE OF OR EQUAL TO). Mathematical Operators block (U+2200–U+22FF). Hex 22E2, decimal 8930. Named entity: &nsqsube;.
Use ⋢ to negate the specific square-image-of-or-equal relation (⊑). Use ≠ (&ne;) for general numeric or value inequality. They represent different mathematical concepts.
HTML references (&#8930;, &#x22E2;, or &nsqsube;) go directly in markup. The CSS escape \22E2 is used in stylesheets, typically in the content property of pseudo-elements. Same visual result, different layers of the stack.
Yes. &nsqsube; is the named HTML entity for U+22E2 and is the most readable option in mathematical markup.

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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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Not Sign (¬) Not Square Original Of Equal To (⋣)