||Returns TRUE if all the arguments are TRUE in the formula, and FALSE if any one argument is FALSE.
||Returns the value FALSE. May be typed directly into the cell as “FALSE”.
||Returns a value if one condition is TRUE and returns another value if the condition is FALSE.
||Returns the reverse value of its arguments; TRUE becomes FALSE and FALSE becomes TRUE.
||Returns FALSE if all arguments are FALSE, and TRUE if at least one argument is TRUE.
||Returns the value TRUE. May be typed directly into the cell as “TRUE”.