.NOT. operator
Standard: F77 F90 F95 F2003
  Example Program
<Syntax>
.NOT. expression
This operator has the highest precedence of the intrinsic logical operators; it is higher than that of .AND., .EQV., .NEQV., .OR., and user-defined binary operators, and lower than all other operators.
<Semantics>
Logical negation of a logical expression. The kind of the result is the same as the kind of the expression.

The result is .TRUE. if the expression is .FALSE. and .FALSE. if the expression is .TRUE..

<Related>
.AND. operator, Concatenation (//) operator, .EQ. (==) operator, .EQV. operator, .GE. (>=) operator, .GT. (>) operator, .LE. (<=) operator, .LT. (<) operator, .NE. (/=) operator, .NEQV. operator, Numeric operators, Operator precedence, .OR. operator