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The up tack or falsum (?, \bot in LaTeX, U+22A5 in Unicode[1]) is a constant symbol used to represent:

as well as

The glyph of the up tack appears as an upside-down tee symbol, and as such is sometimes called eet (the word "tee" in reverse).[] Tee plays a complementary or dual role in many of these theories.

The similar-looking perpendicular symbol (?, \perp in LaTeX, U+27C2 in Unicode) is a binary relation symbol used to represent:

See also


  1. ^ "Mathematical Operators - Unicode" (PDF). Retrieved .

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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