The logical negation operator `!` is a unary operator that computes logical negation of its [bool](../keywords/bool.md) operand. That is, it produces `true`, if the operand is `false`, and `false`, if ...

Negation of simple clauses is formed with the negative particle not. There are two kindes of negation: simple sentence negation and contrastive negation. Let us start with sentence negation. At ...

Switching algebra is easily visualized using switches since there are only two values: on and off, or true and false. In digital systems we represent these as 1 and 0, respectively. There are only two ...

Abstract: Zadeh operators for conjunction, disjunction, and negation are not considered a good semantic basis for any mathematical logic. In this paper, fuzzy models are specified by Zadeh operators ...