Left Tack
Part of Math Symbols
Left Tack has no standard Windows Alt code. Copy the character directly, or use its HTML entity or Unicode value instead.
- Alt code
- None
- HTML entity
- ⊣
- Unicode
- U+22A3
About this symbol
⊣, the left tack, marks an adjunction in category theory: F ⊣ G says that two constructions F and G are paired in a precise way. Logicians also use it as a reversed turnstile.
Unicode facts
- Official name
- LEFT TACK
- Also called
- Reverse turnstile, Non-theorem, does not yield
- Type
- Maths symbol
- Unicode block
- Mathematical Operators
- Unicode group
- Operators
- Added in
- Unicode 1.1 (1993)
Click the symbol or any value at the top of the page to copy it. See the full Math Symbols chart for related characters.