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About this symbol
Used in set theory to denote the empty set.
Unicode
U+2420
HTML Entity
∅
CSS Value
\2420
Category
Technical
Use in Code
HTML
∅CSS content
content: "\2420";Unicode
U+2420More like this
More Technical Symbols
Command Key
Option Key
Shift Key
Caps Lock
Delete/Backspace
Escape Key
Return/Enter
Tab Key
Power Symbol
Circled Asterisk
Gear
Warning Sign
No Entry
Recycling Symbol
At Sign
Hash / Number Sign