Not equivalent to (≭) is the Mathematical Operators character at Unicode U+226D (NOT EQUIVALENT TO). It states that two expressions are not equivalent under ≍ — for example P ≭ Q.
Remember
Character ≭
Unicode U+226D
Named entity ≭
Hex entity ≭
Decimal ≭
CSS escape \226D
Affirmative ≍ (≍, U+224D)
Named, hex, decimal, CSS, and a typed character all produce the same glyph: ≭. Prefer ≭ in HTML source for clarity.
Using Named Entity: ≭
Using Hex Code: ≭
Using HTML Code: ≭
Using CSS Entity: ≭
Example: P ≭ Q
How It Works
1. Named:≭ is the clearest HTML form and renders ≭.
2. Hex:U+226D → ≭ in HTML. Same result as the named entity.
3. Decimal: same code point as 8813 → ≭. Same result as hex.
4. CSS: use \226D in content (not an HTML entity). #point::after appends that ≭ after the paragraph text.
Pitfalls & Tips
Common mistakes when working with the not-equivalent-to entity.
Pair
≭ ≠ ≍
≭ is the negation. ≍ (alias ≍) is the affirmative equivalent to (≍).
Look-alikes
Not ≠ or ≢
≠ is ≠ (not equal). ≢ is ≢ (not identical). Equivalence under ≍ is a different relation.
Name
Capitalization matters
The named form is ≭ — matching HTML5’s camel-case spelling exactly.
CSS vs HTML
Do not mix escapes
\226D belongs in CSS. ≭ / ≭ / ≭ belong in HTML.
Encoding
Declare UTF-8
If you paste ≭ directly, keep <meta charset="UTF-8"> so the file is not misread.
Semicolon
End references
Always finish with ; — write ≭, not &NotCupCap.
Compatibility
Browser Support
Not equivalent to (U+226D) and its entity forms (≭, ≭, ≭, CSS \\226D) are supported in all modern browsers. Glyph availability depends on the font.
✓ Universal encoding
Not Equivalent To (≭)
Encode with named, hex, decimal, or CSS escape — or paste ≭ directly in UTF-8 HTML.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+226DFull support
Bottom line: Prefer ≭ for readable HTML. Use \\226D only inside CSS content.
Remember
Key Takeaways
Unicode: this character is U+226D (decimal 8813).
HTML: prefer ≭ — or use ≭ / ≭.
Use ≭ (named), ≭ (hex), ≭ (decimal), type ≭ in UTF-8, or the CSS escape \226D in content. All render ≭. Prefer ≭ in HTML source.
U+226D (NOT EQUIVALENT TO). Hex 226D, decimal 8813. It belongs to the Mathematical Operators block (U+2200–U+22FF).
Yes. HTML5 defines ≭ for this character. Related: ≍ (alias ≍) for ≍ (U+224D).
Use it when two expressions are not equivalent under ≍ (e.g. P ≭ Q). Prefer ≭ for readable source. For ordinary inequality use ≠ (≠). For not identical use ≢ (≢).
HTML entities (≭, ≭, or ≭) go in markup. The CSS escape \226D is used in stylesheets (usually in the content property of ::before/::after). Both render ≭.
≠ (U+2260, ≠) means not equal. ≢ (U+2262, ≢) means not identical. ≭ (≭) specifically negates ≍ (equivalent to) — do not substitute one for another.
🤔
Did you know?
Not equivalent to (≭) is Unicode U+226D (decimal 8813) — NOT EQUIVALENT TO in Mathematical Operators. HTML5 provides ≭ for this glyph. It negates equivalent to (≍, ≍, U+224D). Related: ≠ (≠, not equal) and ≢ (≢, not identical).
