Closed Subset vs Double Square Union
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://symbolfyi.com/iframe/entity//" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://symbolfyi.com/entity//Add a dynamic SVG badge to your README or docs.
[](https://symbolfyi.com/entity//)Use the native HTML custom element.
VS
Property Comparison
| Property | ⫏ 2ACF | ⩏ 2A4F |
|---|---|---|
| Name | Closed Subset | Double Square Union |
| Category | Math Symbols | Math Symbols |
| Block | Supplemental Mathematical Operators | Supplemental Mathematical Operators |
| Script | Zyyy | Zyyy |
| General Category | Math Symbol (Sm) | Math Symbol (Sm) |
| Bidirectional | ON | ON |
Encoding Comparison
| Format | 2ACF | 2A4F |
|---|---|---|
| Unicode | U+2ACF | U+2A4F |
| HTML Decimal | ⫏ | ⩏ |
| HTML Hex | ⫏ | ⩏ |
| CSS | \2ACF | \2A4F |
| JavaScript | \u{2ACF} | \u{2A4F} |
| Python | \u2acf | \u2a4f |
| UTF-8 | e2 ab 8f | e2 a9 8f |
How to Distinguish
Both Closed Subset and Double Square Union belong to the Math Symbols category and the Supplemental Mathematical Operators block. Compare their codepoints and visual rendering to distinguish them.
Tip: Paste the character into a hex editor or use
charCodeAt()
in JavaScript to check the actual codepoint.