the not operator the not operator only works on one valueinstead of combining two values the not operator evaluates to the opposite boolean value the expression not true will evaluate to false and not false will evaluate to true try entering the following into the interactive shellnot true false not false true not ('black='white'true truth tables if you ever forget how the boolean operators workyou can look at these truth tablestable - the and operator' truth table and is entire statement true and true is true true and false is false false and true is false false and false is false table - the or operator' truth table or is entire statement true or true is true true or false is true false or true is true false or false is false table - the not operator' truth table not is entire statement not true is false not false is true post questions to