Definition from Wiktionary, the free dictionary
Jump to navigation Jump to search
See also: [U+27C2 PERPENDICULAR], ˔ [U+02D4 MODIFIER LETTER UP TACK], [U+4E04 CJK UNIFIED IDEOGRAPH-4E04], and [U+26FC HEADSTONE GRAVEYARD SYMBOL]
Up tack.svg
U+22A5, ⊥
UP TACK

[U+22A4]
Mathematical Operators
[U+22A6]

Translingual[edit]

Symbol[edit]

  1. (logic) A contradiction.
  2. (algebra, logic) A Boolean value corresponding to false.
  3. (type theory) Bottom type.
  4. (computing, dated) ISO 2047 symbol for Start of Text.

Synonyms[edit]

  • (Boolean falsity): 0

Antonyms[edit]

  • (Boolean falsity): , 1

Coordinate terms[edit]