View details and encodings for Unicode character U+2205 Empty Set, located in the Mathematical Operators block and Math Symbol category. This character was released in 1993 under Unicode version 1.1.
∅
∅
∅
∅
∅
∅
U+2205;
8709
\002205
\u2205
\x{2205}
\u{2205}
u'\u2205'