Code point
U+29B4
Glyph appearance depends on your fonts.
U+29B4
SmU+29B4 EMPTY SET WITH LEFT ARROW ABOVE is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Miscellaneous Mathematical Symbols-B block.
Choose the representation you need, then copy its value.
U+29B4
10676
⦴
⦴
⦴
E2 A6 B4
29B4
000029B4
%E2%A6%B4
\u29B4
\u29B4
\u29B4
\29B4