An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک



negation
  نایش  
nâyeš (#)
Fr.: négation  
  1. The act of denying; → denial.

  2. The absence or → opposite of something that is actual, positive, or affirmative.

  3. A → negative statement, idea, doctrine; a contradiction, refutation, or rebuttal.

  4. Logic: If p is a → proposition, then the statement “not p,” denoted ¬ p, is the negation or opposite of p. If p is “It is sunny,” then ¬ p is “It is not sunny.” If p is → true, then ¬ p is → false, and vice versa.

See also: Verbal noun of → negate.