TRUE

NOT(value)

NA

OR(number1,number2...)

ISTEXT(value)

ISNUMBER(value)

ISNONTEXT(value)

ISNA(value)

ISERROR(value)

ISERR(value)

ISBLANK(value)

IF(value,true_value,false_value)

FALSE

ERROR

CHOOSE(index,number1,number2...)

AND(number1,number2...)