Does not succeed (⊁) is the Unicode character at U+2281 in the Mathematical Operators block. Official name: DOES NOT SUCCEED. In order theory, a ⊁ b means a does not succeed b.
Remember
Character ⊁
Unicode U+2281
Named entity ⊁
Hex entity ⊁
Decimal ⊁
CSS escape \2281
Not the same ≻ · ⋡ · ⊀
Prefer ⊁ in HTML markup (aliases: ⊁, ⊁). You can also type ⊁ in UTF-8, or use numeric forms when needed.
Does not succeed rendered in common order-theory contexts.
Examplea ⊁ b
Large glyph⊁
Compared≻ ⊁ ⋡ ⊀
With entitiesNamed: ⊁ | Hex: ⊁ | Decimal: ⊁
Code
Complete HTML Example
One page that shows Does Not Succeed with named, hex, decimal, CSS escape, and a typed character. Use View Output or open the live editor.
Named + Hex + Decimal + CSS + Typed
Five ways to produce ⊁, plus an order-theory example.
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Does Not Succeed (⊁) in HTML</title>
<style>
#point::after {
content: "\2281";
}
</style>
</head>
<body>
<p>Symbol using Named Entity: ⊁</p>
<p>Symbol using Hex Code: ⊁</p>
<p>Symbol using HTML Code: ⊁</p>
<p id="point">Symbol using CSS Entity: </p>
<p>Typed directly: ⊁</p>
<p>Example: a ⊁ b means a does not succeed b. Positive uses ≻.</p>
</body>
</html>
Symbol using Named Entity: ⊁
Symbol using Hex Code: ⊁
Symbol using HTML Code: ⊁
Symbol using CSS Entity: ⊁
Typed directly: ⊁
Example: a ⊁ b means a does not succeed b. Positive uses ≻.
How It Works
1. Named:⊁ is the HTML5 name for U+2281 → ⊁. Best default in markup.
2. Hex:U+2281 → ⊁ in HTML. Same glyph as the named form.
3. Decimal: same code point as 8833 → ⊁. Same result as hex and named.
4. CSS: use \2281 in content (not an HTML entity). #point::after appends that ⊁ after the paragraph text.
5. Typed / example: paste ⊁ in UTF-8, or write a ⊁ b. The positive form is ≻ (≻).
Pitfalls & Tips
Common mistakes when working with Does Not Succeed.
≻
Positive vs negation
Use ≻ (≻) when a succeeds b. Use ⊁ (⊁) when it does not.
⋡
Strict vs or-equal
⋡ (⋡) is does not succeed or equal. Do not use it when the strict negation is intended.
⊀
Succeed vs precede
⊀ is does not precede. ⊁ is does not succeed. They point opposite ways in the order.
CSS vs HTML
Do not mix escapes
\2281 belongs in CSS strings. ⊁ / ⊁ / ⊁ belong in HTML.
Fonts
Math font coverage
Some fonts omit U+2281. Prefer a font with Mathematical Operators coverage for display.
Semicolon
End references
Always finish with ; — write ⊁, not &nsc.
Compatibility
Browser Support
Does not succeed (U+2281) and its entity forms (⊁, ⊁, ⊁, CSS \\2281) are supported in all mainstream browsers. Visible glyphs depend on math font coverage.
✓ Universal support
Does Not Succeed (⊁)
Encode with named, hex, decimal, CSS escape, or type the character — same code point everywhere encoding is supported.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+2281 / entitiesFull support
Bottom line: Prefer ⊁ in HTML. Use ⊁ or ⊁ when numeric form is required, and \\2281 only inside CSS content.
Remember
Key Takeaways
Unicode: does not succeed is U+2281 (decimal 8833) — glyph ⊁.
HTML: prefer ⊁, or use ⊁ / ⊁ / type ⊁.
CSS: use \2281 inside content for generated text.
Meaning:⊁ = does not succeed — not ≻, ⋡, or ⊀.
One line:U+2281 → ⊁ / ⊁ / ⊁ / CSS \2281 / type ⊁.
Frequently Asked Questions
Use ⊁ (named), ⊁ (hex), ⊁ (decimal), type ⊁ directly in UTF-8, or the CSS escape \2281 in content. Prefer ⊁ in normal HTML.
U+2281 (DOES NOT SUCCEED). Hex 2281, decimal 8833. It belongs to the Mathematical Operators block (U+2200–U+22FF).
Yes. Use ⊁ (preferred), or aliases ⊁ and ⊁. Numeric forms ⊁ and ⊁ also work.
Use it in order theory when a does not succeed b (a ⊁ b). For the positive relation, use U+227B (≻ / ≻). For or-equal negation, use U+22E1 (⋡).
HTML entities (⊁, ⊁, or ⊁) go in markup. The CSS escape \2281 goes in stylesheet strings (usually content on ::before/::after).
No. ⊁ (⊁) is does not succeed. ≻ (≻) is succeeds. ⋡ (⋡) is does not succeed or equal.
🤔
Did you know?
Does not succeed is Unicode U+2281 (decimal 8833) — glyph ⊁ in the Mathematical Operators block. HTML5 names it ⊁ (also ⊁, ⊁). It is the negation of succeeds ≻ (≻ / ≻). The or-equal negation is ⋡ (⋡).
