Superset or equal to (⊇) is the Unicode character at U+2287 in Mathematical Operators. Official name: SUPERSET OF OR EQUAL TO. In set theory, A ⊇ B means A contains every element of B, and the sets may be equal. HTML5 provides the named entities ⊇ and ⊇.
Remember
Character ⊇
Unicode U+2287
Named entity ⊇ (also ⊇)
Hex entity ⊇
Decimal ⊇
CSS escape \2287
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 CSS Entity: ⊇
Typed directly: ⊇
Example: A ⊇ B
How It Works
1. Named:⊇ (or ⊇) is the clearest HTML form for U+2287.
2. Hex:U+2287 → ⊇ in HTML. Same glyph as the named form.
3. Decimal: same code point as 8839 → ⊇. Same result as hex.
4. CSS: use \2287 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 for a short set relation.
Pitfalls & Tips
Common mistakes when working with Superset Or Equal To.
⊃
Not plain superset
⊃ is plain superset of (U+2283). Prefer ⊇ when equality is allowed.
⊆
Not subset or equal to
⊆ is U+2286. Prefer ⊇ for the superset direction.
Alias
⊇ = ⊇
Both named forms map to U+2287. Pick one style and stay consistent.
Fonts
Math font coverage
Some UI fonts omit Mathematical Operators. Prefer a math-capable font for display.
CSS vs HTML
Do not mix escapes
\2287 belongs in CSS. ⊇ / ⊇ / ⊇ belong in HTML.
Semicolon
End entity references
Always finish with ; — write ⊇, not &supe.
Compatibility
Browser Support
Superset or equal to (U+2287) and its entity forms (⊇, ⊇, ⊇, CSS \\2287) are supported in all mainstream browsers. Glyph availability depends on the font.
✓ Universal support
Superset Or 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+2287 / entitiesFull support
Bottom line: Prefer ⊇ (or ⊇) in HTML. Use ⊇ / ⊇ when a numeric form is required, and \\2287 only inside CSS content.
Remember
Key Takeaways
Unicode: this mark is U+2287 (decimal 8839) — glyph ⊇.
HTML: prefer ⊇ (alias ⊇), or ⊇ / ⊇.
CSS: use \2287 inside content for generated text.
Meaning:A ⊇ B means A contains B or they are equal — not plain ⊃, not ⊆.
Use ⊇ or ⊇ (named), ⊇ (hex), ⊇ (decimal), type ⊇ directly in UTF-8, or the CSS escape \2287 in content.
U+2287 (SUPERSET OF OR EQUAL TO). Hex 2287, decimal 8839. It belongs to Mathematical Operators (U+2200–U+22FF).
Yes. HTML5 defines ⊇ and the alias ⊇ for this character. They are equivalent to ⊇ and ⊇.
Use it in set theory when A contains every element of B and the sets may be equal. Prefer ⊃ for plain superset of (U+2283) and ⊆ for subset or equal to (U+2286).
HTML entities (⊇, ⊇, or ⊇) go in markup. The CSS escape \2287 goes in stylesheet strings (usually content on ::before/::after).
No. ⊇ is superset or equal to (U+2287). ⊃ is plain superset of (U+2283). ⊆ is subset or equal to (U+2286).
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Did you know?
Superset or equal to (⊇) is Unicode U+2287 (decimal 8839) — SUPERSET OF OR EQUAL TO in Mathematical Operators. HTML5 provides ⊇ (also ⊇). In set theory, A ⊇ B means A is a superset of B or the sets are equal. Plain superset is U+2283 (⊃); the reverse is U+2286 (⊆).
