HTML Entity for Bet Symbol (ℶ)

Beginner
⏱️ 5 min read
📚 Updated: May 2026
🎯 1 Code Example
Unicode U+2136
HTML entity for Bet symbol (U+2136) tutorial illustration

What You'll Learn

How to display the Bet symbol (ℶ) in HTML and CSS. This character is U+2136 in the Letterlike Symbols block. In mathematics it denotes the beth hierarchy (ℶ0, ℶ1, …), a sequence of infinite cardinals related to power sets. It is the same Hebrew letter shape as beth, distinct from aleph (ℵ, U+2135).

You can write it as &#x2136;, &#8502;, the named entity &beth;, or \2136 in CSS content. Pair subscripts with <sub> or Unicode subscripts for indices, and prefer math-friendly fonts so ℶ aligns with surrounding notation.

⚡ Quick Reference — Bet Symbol

Unicode U+2136

Letterlike Symbols

Hex Code &#x2136;

Hexadecimal reference

HTML Code &#8502;

Decimal reference

Named Entity &beth;

HTML5 named reference

Reference Table
Name           Value
────────────   ──────────
Unicode        U+2136
Hex code       &#x2136;
HTML code      &#8502;
Named entity   &beth;
CSS code       \2136
1

Complete HTML Example

This example shows the Bet symbol using hexadecimal and decimal character references, the &beth; named entity, and a CSS content escape on a pseudo-element:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\2136";
  }
 </style>
</head>
<body>
<p>Bet Symbol using Hexa Decimal: &#x2136;</p>
<p>Bet Symbol using HTML Code: &#8502;</p>
<p>Bet Symbol using HTML Entity: &beth;</p>
<p id="point">Bet Symbol using CSS Entity: </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

U+2136 and &beth; are supported wherever HTML5 named entities and Letterlike Symbols are available:

Chrome 1+
Firefox 1+
Safari 1+
Edge 12+
Opera 4+
Android 4.4+
iOS Safari 1+

👀 Live Preview

See ℶ in context and beside the aleph glyph (different code point):

Beth vs aleph Beth ℶ   Aleph ℵ
Large glyph ℶ
Indexed notation ℶ0, ℶ1, ℶ2
Monospace refs &#x2136; &#8502; &beth;
Note For heavy set theory, consider MathML or KaTeX/MathJax; HTML entities still work for inline ℶ.

🧠 How It Works

1

Hexadecimal Code

&#x2136; references code point U+2136 using hex digits 2136 after the #x prefix.

HTML markup
2

Decimal HTML Code

&#8502; is the decimal equivalent (8502) for the same Bet symbol.

HTML markup
3

Named Entity

&beth; (ampersand + beth + semicolon) is the HTML5 named character reference for U+2136.

HTML markup
4

CSS Escape

\2136 is the CSS escape for U+2136, used in the content property of ::before or ::after.

CSS stylesheet
=

Same visual result

Hex, decimal, named, and CSS escapes all produce ℶ. Do not confuse with ℵ (aleph, U+2135).

✅

Use Cases

The Bet symbol (ℶ) is commonly used for:

📐 Set theory

Cardinal arithmetic, power-set hierarchies, and statements involving beth numbers.

📚 Proofs & papers

Lemma and theorem statements where the beth sequence is named explicitly.

🎓 Education

Courses on infinity, ordinals, and the relationship between ℶα and 2ℵα (under GCH).

📄 STEM publishing

HTML-first journals and preprint pages that mix prose with letterlike math symbols.

🔢 Notation glossaries

Legend rows that spell out “beth” next to the glyph for first-time readers.

💻 Math blogs

Inline posts where full TeX is overkill but ℶ must appear correctly in UTF-8 HTML.

♿ Accessibility

Add visible text or aria-label (“beth”) when ℶ stands alone without nearby explanation.

💡 Best Practices

Do

  • Use &beth; when readability of source matters; use numeric refs in generated or minified markup if you prefer
  • Pick math or serif stacks (STIX Two Math, Cambria Math) so ℶ matches weight with ℵ and superscripts
  • Contrast ℶ with ℵ in prose the first time each symbol appears
  • Keep \2136 inside stylesheets only, not pasted into HTML text
  • For complex formulas, layer MathML or a math renderer on top of simple HTML entities

Don’t

  • Call ℶ “aleph” or interchange ℶ0 with ℵ0 without defining your convention
  • Rely on a bare glyph alone in assessments; include words or numbers for clarity
  • Assume every UI sans font matches journal-quality beth strokes
  • Encode &beth; inside another attribute without escaping rules in mind (use numeric refs in tight attribute contexts if needed)
  • Forget subscript markup for indices when plain Unicode subscripts are unavailable

Key Takeaways

1

Four equivalent ways in HTML/CSS

&#x2136; &#8502;
2

Named entity and CSS escape

&beth; \2136
3

U+2136 is beth; U+2135 is aleph (different meaning)

4

Letterlike Symbols block; common in set theory and cardinal notation

5

Expose “beth” in text or labels for readers who do not know the glyph by sight

❓ Frequently Asked Questions

Use &#x2136; (hex), &#8502; (decimal), &beth; (named), or \2136 in CSS content. All render ℶ.
U+2136 (hex 2136, decimal 8502). Letterlike Symbols. Used for beth numbers; aleph is the separate character U+2135 (ℵ).
Whenever you typeset the beth hierarchy, cardinal inequalities, or educational material that names ℶ explicitly alongside set-theoretic context.
&beth; is easy to read in hand-written HTML. Numeric references are universal and copy well from Unicode charts. Functionally they are identical in the DOM.
Yes: &beth; maps to U+2136. You can still use &#x2136; or &#8502; if you standardize on numeric references.

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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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