Logical negation

operation that takes a proposition p to another proposition "not p", written ¬p, which is interpreted intuitively as being true when p is false, and false when p is true; unary (single-argument) logical connective

Logical negation (also known as not) is a logic operation. For a proposition , its negation is written as .[1] It takes one input. It flips the value of the input as the output. If the input was true, it returns false; If the input was false, it returns true.[2][3]

Related pagesEdit


  1. "Comprehensive List of Logic Symbols". Math Vault. 2020-04-06. Retrieved 2020-09-02.
  2. Weisstein, Eric W. "Negation". mathworld.wolfram.com. Retrieved 2020-09-02.
  3. "Logic and Mathematical Statements - Worked Examples". www.math.toronto.edu. Retrieved 2020-09-02.