HTML Entity for Strictly Equivalent To (≣)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+2263
HTML entity for Strictly Equivalent To (U+2263) — hex, decimal, and CSS tutorial

What You'll Learn

How to display Strictly Equivalent To (≣) in HTML using hexadecimal, decimal, and CSS escape methods. This character is U+2263 (STRICTLY EQUIVALENT TO) in the Mathematical Operators block (U+2200–U+22FF)—a relation symbol for strict equivalence or congruence in logic and algebra.

Render it with ≣, ≣, or CSS \2263. There is no named HTML entity. Do not confuse ≣ with Identical To ≡ (U+2261, ≡) or plain equals (=).

⚡ Quick Reference — Strictly Equivalent To

Unicode U+2263

Mathematical Operators

Hex Code ≣

Hexadecimal reference

HTML Code ≣

Decimal reference

Named Entity —

Use numeric codes only

Reference Table
Name           Value
────────────   ──────────
Unicode        U+2263
Hex code       ≣
HTML code      ≣
Named entity   (none)
CSS code       \2263
Meaning        Strictly equivalent to
Not the same   U+2261 = Identical To (≡, ≡)
               U+224D = Equivalent To (≍, ≍)
Block          Mathematical Operators (U+2200–U+22FF)
1

Complete HTML Example

A simple example showing ≣ using hexadecimal code, decimal HTML code, and a CSS content escape (no named entity):

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point::after{
   content: "\2263";
  }
 </style>
</head>
<body>
<p>Logic (hex): A &#x2263; B</p>
<p>Logic (decimal): x &#8803; y</p>
<p id="point">Logic (CSS): Relation </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

Strictly Equivalent To (≣) renders in modern browsers when fonts include Mathematical Operators glyphs:

Chrome1+
Firefox1+
Safari3.1+
Edge12+
Opera4+
Android4.4+
iOS Safari3.2+

👀 Live Preview

See the strictly equivalent to relation in mathematical contexts:

Single symbol ≣
Relation expression A ≣ B
Theorem label Strict equivalence ≣ definition
Not the same as ≣ (Strictly Equivalent)  |  ≡ (Identical, &equiv;)  |  = (Equals)
Numeric refs &#x2263; &#8803; \2263

🧠 How It Works

1

Hexadecimal Code

&#x2263; references code point U+2263 using hex digits 2263.

HTML markup
2

Decimal HTML Code

&#8803; is the decimal equivalent (8803) for the same character.

HTML markup
3

CSS Entity

\2263 is the CSS escape for U+2263, used in the content property of pseudo-elements.

CSS stylesheet
=

Same visual result

All three methods produce ≣. Unicode U+2263 in Mathematical Operators (U+2200–U+22FF). No named entity.

✅

Use Cases

Strictly Equivalent To (≣) commonly appears in:

📊 Math expressions

Equations and formulas expressing strict equivalence relations.

💡 Logic notation

Formal logic, algebra, and equivalence proofs in academic content.

🏫 Academic papers

Research articles, theorems, and scholarly mathematical documentation.

🔬 Scientific docs

Technical documentation and reference materials for math notation.

📚 Educational sites

Online courses and tutorials teaching logic and algebra.

💻 Math applications

Interactive tools and calculators displaying relation symbols.

💡 Best Practices

Do

  • Use &#x2263; or &#8803; in HTML markup
  • Provide context or alt text for screen readers in mathematical content
  • Use math-friendly fonts that support Mathematical Operators
  • Pick hex or decimal style and stay consistent per project
  • Consider MathML for complex equations alongside HTML entities

Don’t

  • Use padded Unicode notation like U+02263—the correct value is U+2263
  • Use CSS \02263 with a leading zero—prefer \2263
  • Confuse ≣ with Identical To ≡ (U+2261, &equiv;)
  • Substitute plain equals (=) when the strict equivalence symbol is required
  • Put CSS escape \2263 in HTML text nodes

Key Takeaways

1

Three ways to render U+2263 in HTML and CSS

&#x2263; &#8803;
2

For CSS stylesheets, use \2263 in the content property

3

U+2263 — STRICTLY EQUIVALENT TO (≣)

4

Distinct from Identical To ≡ and Equivalent To ≍

5

Previous: Stress Outlined White Star   Next: Subgroup Equal To

❓ Frequently Asked Questions

Use &#x2263; (hex), &#8803; (decimal), or \2263 in CSS content. There is no named HTML entity. All three render ≣.
U+2263 (STRICTLY EQUIVALENT TO). Mathematical Operators (U+2200–U+22FF). Hex 2263, decimal 8803.
No. ≣ (U+2263) is STRICTLY EQUIVALENT TO. ≡ (U+2261) is IDENTICAL TO with named entity &equiv;. They are separate Unicode characters with different glyphs and meanings.
For mathematical expressions, logical equivalence notation, academic papers, scientific documentation, educational materials, formal proofs, and any content requiring the strict equivalence relation symbol.
Named HTML entities cover ASCII, Latin-1, and some common symbols. Mathematical Operators characters like U+2263 use numeric hex or decimal references—standard practice for specialized Unicode blocks.

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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
  • Focus Full Stack Development, AWS, and Developer Education

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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