Tee (symbol)

The tee (⊤), also called down tack (as opposed to the up tack) or verum is a symbol used to represent:

A similar-looking superscript T may be used to mean the transpose of a matrix.

In Unicode, the tee character is encoded as U+22A4 ⊤ DOWN TACK (HTML ⊤). The symbol is encoded in LaTeX as \top.