Tee (symbol)
The tee (⊤), also called down tack (as opposed to the up tack) or verum is a symbol used to represent:
- The top element in lattice theory.
- The truth value of being true in logic. By definition, every tautology is logically equivalent to the verum.
- The top type in type theory.
- Mixed radix encoding in the APL programming language.
A similar-looking superscript T may be used to mean the transpose of a matrix.
Encoding
In Unicode, the tee character is encoded as U+22A4 ⊤ DOWN TACK (HTML ⊤
).[1] The symbol is encoded in LaTeX as \top
.
See also
Notes
- "Mathematical Operators – Unicode" (PDF). Retrieved 2013-07-20.
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