Subgroup equal to (⊴) is the Mathematical Operators character at Unicode U+22B4 (NORMAL SUBGROUP OF OR EQUAL TO). In group theory, H ⊴ G means H is a normal subgroup of or equal to G. HTML5 provides the named entities ⊴ and ⊴.
Remember
Character ⊴
Unicode U+22B4
Named entity ⊴ (also ⊴)
Hex entity ⊴
Decimal ⊴
CSS escape \22B4
All of these produce the same glyph: ⊴. Prefer ⊴ for readable HTML; paste ⊴ in UTF-8 when convenient.
Using Named Entity: ⊴
Using Hex Code: ⊴
Using HTML Code: ⊴
Using Direct Character: ⊴
Using CSS Entity: ⊴
Example: H ⊴ G
How It Works
1. Named:⊴ (or ⊴) is the clearest HTML form for U+22B4.
2. Hex:U+22B4 → ⊴ in HTML. Reliable numeric form.
3. Decimal: same code point as 8884 → ⊴. Same glyph.
4. Direct: paste ⊴ in a UTF-8 file with <meta charset="UTF-8">.
5. CSS: use \22B4 in content (not an HTML entity). #point::after appends that ⊴ after the paragraph text.
Pitfalls & Tips
Common mistakes when working with Subgroup Equal To.
Direction
⊴ vs ⊵
H ⊴ G means H is a normal subgroup of or equal to G. The reverse symbol is ⊵ (U+22B5).
Not ⊲
Not strict normal subgroup
⊲ (U+22B2) is normal subgroup of without the “or equal” bar under the triangle.
Not subset
Not ⊆
Subset or equal ⊆ is set inclusion. Subgroup equal to is a group-theory relation — different meaning.
Aliases
⊴ = ⊴
Both named forms map to U+22B4. Pick one and stay consistent.
CSS vs HTML
Do not mix escapes
\22B4 belongs in CSS. ⊴ / ⊴ / ⊴ belong in HTML.
Semicolon
End references
Always finish with ; — write ⊴, not <rie.
Compatibility
Browser Support
Subgroup equal to (U+22B4) and its entity forms (⊴, ⊴, ⊴, CSS \\22B4) are supported in all mainstream browsers. Glyph availability depends on the font.
✓ Universal support
Subgroup Equal To (⊴)
Prefer ⊴, or encode with hex, decimal, or CSS escape — same glyph everywhere.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+22B4 / entitiesFull support
Bottom line: Prefer ⊴ (or ⊴) in HTML. Use ⊴ / ⊴ when a numeric form is required, and \\22B4 only inside CSS content.
Remember
Key Takeaways
Unicode: this mark is U+22B4 (decimal 8884) — glyph ⊴.
HTML: prefer ⊴ (alias ⊴), or ⊴ / ⊴.
Use ⊴ (named), ⊴ (hex), ⊴ (decimal), type ⊴ directly in UTF-8, or the CSS escape \22B4 in content. Alias: ⊴.
U+22B4 (NORMAL SUBGROUP OF OR EQUAL TO). Hex 22B4, decimal 8884. It belongs to Mathematical Operators (U+2200–U+22FF).
Yes. HTML5 defines ⊴ and ⊴ for this character. Both are equivalent to ⊴ and ⊴.
Use it in group theory and abstract algebra when H is a normal subgroup of or equal to G (H ⊴ G). Prefer ⊲ for strict normal subgroup (U+22B2) and ⊵ for the reverse relation (U+22B5).
HTML entities (⊴, ⊴, or ⊴) go in markup. The CSS escape \22B4 goes in stylesheet strings (usually content on ::before/::after).
No. ⊴ is U+22B4 (normal subgroup of or equal to). ⊲ is U+22B2 (normal subgroup of). ⊆ is U+2286 (subset of or equal to) — set theory, not the same relation.
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Did you know?
Subgroup equal to (⊴) is Unicode U+22B4 (decimal 8884) — NORMAL SUBGROUP OF OR EQUAL TO in Mathematical Operators. HTML5 provides ⊴ (also ⊴). In group theory, H ⊴ G means H is a normal subgroup of or equal to G. The reverse relation is U+22B5 (⊵).
