∅ Empty Set

null set

U+2205

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Technical information

Name Empty Set
Unicode number
U+2205
HTML-code
∅
CSS-code
\2205
Entity
Block Mathematical Operators
Unicode version: 1.1 (1993)

Symbol meaning

Empty Set. Mathematical Operators.

Empty Set was approved as part of Unicode 1.1 in 1993.

Properties

Age 1.1
Block Mathematical Operators
Bidi Paired Bracket Type None
Composition Exclusion No
Case Folding 2205
Simple Case Folding 2205

Encoding

Encoding hex dec (bytes) dec binary
UTF-8 E2 88 85 226 136 133 14846085 11100010 10001000 10000101
UTF-16BE 22 05 34 5 8709 00100010 00000101
UTF-16LE 05 22 5 34 1314 00000101 00100010
UTF-32BE 00 00 22 05 0 0 34 5 8709 00000000 00000000 00100010 00000101
UTF-32LE 05 22 00 00 5 34 0 0 86114304 00000101 00100010 00000000 00000000

Sets with this symbol:

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