View details and encodings for Unicode character U+29B2 Empty Set With Small Circle Above, located in the Miscellaneous Mathematical Symbols-B block and Math Symbol category. This character was released in 2002 under Unicode version 3.2.
⦲⦲⦲U+29B2;10674\0029B2\u29B2\x{29B2}\u{29B2}u'\u29B2'