a criterion may be negated by using the logical operator

A criterion may be negated by using the ____ logical operator.

Not

In logic a negation is the logical operation that produces the value false when applied to a logical expression Negation is normally symbolized by a bar over the variable or predicate letter being negated as in ¬P representing not P The truth table of A ¬A (read: “not A”) shows that it yields false if A is true and vice versa In propositional logic negation has only one meaning which is denoted

A logical operator is a programming construct that allows us to do complex operations in our code For example if we want to compare two variables and see if they’re equal we can write code like this: if(x == y) { //do something } We could also check for inequality by writing something like this: if(x != y) { //do something } However these aren’t very readable or maintainable

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