Unicode Character "∉" (U+2209)

The character (Not An Element Of) is represented by the Unicode codepoint U+2209. It is encoded in the Mathematical Operators block, which belongs to the Basic Multilingual Plane. It was added to Unicode in version 1.1 (June, 1993). It is HTML encoded as ∉. Its mirrored character is (U+220C).

Main Unicode Properties

Name Not An Element Of
Unicode Codepoint U+2209
Unicode Version 1.1 (June, 1993)
Block Mathematical Operators
Plane Basic Multilingual Plane

Bidirectional Data

Bidirectional class Other Neutral (ON)
Is mirrored? Yes
Mirrored character (U+220C)

Other Unicode Data

Category Math Symbol
Script Code for undetermined script
Combining Class Not Reordered
Decomposition mapping

U+2209 Conversion

HTML (decimal) ∉
HTML (hex) ∉
HTML (named) ∉
URL Escape Code %E2%88%89
CSS \002209
JavaScript, JSON \u2209
C, C++, Java \u2209
Python \u2209
Rust \u{2209}
Ruby \u2209

How to type "∉"

  • Windows ?: Hold Alt, then type 2 2 0 9. Release Alt.
  • Mac ?: Hold Alt ⌥, then type 2 2 0 9. Release Alt.


  • Times, Times New Roman, serif
  • Helvetica, Arial, sans-serif
  • Courier, Courier New, monospace

UTF Encodings

UTF-8 (hex) 0xE2 0x88 0x89
UTF-16 (hex) 0x2209
UTF-32 (hex) 0x00002209