Is it false?
Returns a Yes/No expression as follows:
TRUEif condition isFALSEFALSEif condition isTRUE
Sample usage
NOT(TRUE) returns FALSE
NOT(FALSE) returns TRUE
NOT(ISBLANK([Detail])) returns TRUE if the Detail column value is not blank. Equivalent to ISNOTBLANK([Detail]). See also: ISBLANK(), ISNOTBLANK()
NOT(WEEKDAY(TODAY()) = "Sunday") returns TRUE if the today's weekday name is not Sunday. Equivalent to WEEKDAY(TODAY()) <> "Sunday". See also: TODAY(), WEEKDAY()
NOT(IN([Color]), {"Orange", "Red"}) returns TRUE if the Color column value is not Orange or Red. Equivalent to AND(([Color] <> "Orange"), ([Color] <> "Red")). See also: AND(), IN()
Syntax
NOT(condition)
condition- AYes/Noexpression that results inTRUEorFALSE.