∉
U+2209 NOT AN ELEMENT OF
Mathematical Operators · Math symbol
| Name | NOT AN ELEMENT OF |
|---|---|
| Code point | U+2209 |
| Decimal | 8713 |
| Block | Mathematical Operators |
| Category | Math symbol (Sm) |
| UTF-8 | E2 88 89 |
| UTF-16 | 2209 |
| UTF-32 | 00002209 |
| HTML | ∉ ∉ ∉ |
| CSS | \2209 |
| JavaScript | \u2209 |
| Python | \u2209 |
| URL-encoded | %E2%88%89 |
| Decomposition | 2208 0338 |
Frequently asked questions
What is the character U+2209?
U+2209 ∉ is officially named NOT AN ELEMENT OF. It belongs to the Mathematical Operators block and the category Math symbol.
How do I type ∉?
Windows (Word, WordPad): type 2209, then press Alt+X. Linux (GTK/IBus): Ctrl+Shift+U 2209, then Space. macOS: enable the “Unicode Hex Input” keyboard, hold Option and type 2209. Or simply copy it from this page.
How do I write ∉ in HTML?
As a numeric character reference ∉ (decimal) or ∉ (hexadecimal). In UTF-8 documents you can also insert the character directly. There is also the named entity ∉.
How is ∉ encoded in UTF-8?
In UTF-8 the character takes 3 bytes: E2 88 89. In UTF-16: 2209.