¬

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See also:

¬ U+00AC, ¬
NOT SIGN
«
Latin-1 Supplement

Translingual

Etymology

Introduced by Arend Heyting in “Die formalen Regeln der intuitionistischen Logik” (1930)[1]

Symbol

¬

  1. (logic) not
    (x y) ¬(x = y)

Usage notes

Synonyms

References