Double intersection (⋒) is the Unicode character at U+22D2 in the Mathematical Operators block. Official name: DOUBLE INTERSECTION. It is a double-cap operator used in set theory (e.g. A ⋒ B).
Remember
Character ⋒
Unicode U+22D2
Named entity ⋒
Hex entity ⋒
Decimal ⋒
CSS escape \22D2
Not the same ∩ · ⋂ · ⋓
Prefer ⋒ in HTML markup (case-sensitive capital C). You can also type ⋒ in UTF-8, or use numeric forms when needed.
Double Intersection using Named Entity: ⋒
Double Intersection using Hex Code: ⋒
Double Intersection using HTML Code: ⋒
Double Intersection using CSS Entity: ⋒
Typed directly: ⋒
Set theory: A ⋒ B
How It Works
1. Named:⋒ is the HTML5 name for U+22D2 → ⋒. Best default in markup (capital C).
2. Hex:U+22D2 → ⋒ in HTML. Same glyph as the named form.
3. Decimal: same code point as 8914 → ⋒. Same result as hex and named.
4. CSS: use \22D2 in content (not an HTML entity). #point::after appends that ⋒ after the paragraph text.
5. Typed / set theory: paste ⋒ in UTF-8, or write A ⋒ B.
Pitfalls & Tips
Common mistakes when working with Double Intersection.
Case
Case-sensitive name
Write ⋒ (capital C). ∩ is the single intersection ∩.
∩
Not ordinary intersection
Use ∩ for ∩. Use ⋒ only when you need the double-cap form.
⋓
Related: double union
⋓ (⋓) is the double-union counterpart — not the same character as ⋒.
CSS vs HTML
Do not mix escapes
\22D2 belongs in CSS strings. ⋒ / ⋒ / ⋒ belong in HTML.
Fonts
Math font coverage
Some fonts omit U+22D2. Prefer a font with Mathematical Operators coverage for display.
Semicolon
End references
Always finish with ; — write ⋒, not &Cap.
Compatibility
Browser Support
Double intersection (U+22D2) and its entity forms (⋒, ⋒, ⋒, CSS \\22D2) are supported in all mainstream browsers. Visible glyphs depend on math font coverage.
✓ Universal support
Double Intersection (⋒)
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+22D2 / entitiesFull support
Bottom line: Prefer ⋒ in HTML (capital C). Use ⋒ or ⋒ when numeric form is required, and \\22D2 only inside CSS content.
Remember
Key Takeaways
Unicode: double intersection is U+22D2 (decimal 8914) — glyph ⋒.
HTML: prefer ⋒, or use ⋒ / ⋒ / type ⋒.
CSS: use \22D2 inside content for generated text.
Meaning:⋒ = double cap — not ∩, ⋂, or ⋓.
One line:U+22D2 → ⋒ / ⋒ / ⋒ / CSS \22D2 / type ⋒.
Frequently Asked Questions
Use ⋒ (named), ⋒ (hex), ⋒ (decimal), type ⋒ directly in UTF-8, or the CSS escape \22D2 in content. Prefer ⋒ in normal HTML. The name is case-sensitive.
U+22D2 (DOUBLE INTERSECTION). Hex 22D2, decimal 8914. It belongs to the Mathematical Operators block (U+2200–U+22FF).
Yes. Use ⋒. Numeric forms ⋒ and ⋒ also work. Do not confuse with ∩ (U+2229).
Use it in set theory or math when you need the double-cap / double intersection operator (A ⋒ B). Prefer ∩ (∩) for ordinary intersection.
HTML entities (⋒, ⋒, or ⋒) go in markup. The CSS escape \22D2 goes in stylesheet strings (usually content on ::before/::after).
No. ⋒ is U+22D2 (⋒). ∩ is U+2229 (∩). ⋂ / ⋂ is U+22C2 (⋂), the n-ary intersection.
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Did you know?
Double intersection is Unicode U+22D2 (decimal 8914) — glyph ⋒ in the Mathematical Operators block. HTML5 names it ⋒ (case-sensitive). It is a double-cap operator in set theory. The ordinary intersection is ∩ (∩). The double-union counterpart is ⋓ (⋓).
