Not An Element Of vs Union
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VS
Property Comparison
| Property | ∉ 2209 | ∪ 222A |
|---|---|---|
| Name | Not An Element Of | Union |
| Category | Math Symbols | Math Symbols |
| Block | Mathematical Operators | Mathematical Operators |
| Script | Zyyy | Zyyy |
| General Category | Math Symbol (Sm) | Math Symbol (Sm) |
| Bidirectional | ON | ON |
Encoding Comparison
| Format | 2209 | 222A |
|---|---|---|
| Unicode | U+2209 | U+222A |
| HTML Decimal | ∉ | ∪ |
| HTML Hex | ∉ | ∪ |
| CSS | \2209 | \222A |
| JavaScript | \u{2209} | \u{222A} |
| Python | \u2209 | \u222a |
| UTF-8 | e2 88 89 | e2 88 aa |
How to Distinguish
Both Not An Element Of and Union belong to the Math Symbols category and the 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.