> For the complete documentation index, see [llms.txt](https://docs.inforiver.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.inforiver.com/premium-table/formula-syntax/logical-functions.md). # Logical functions

NAME	DESCRIPTION	SYNTAX	EXPLANATION	EXAMPLE
AND	Returns TRUE if all the conditions are TRUE
IN	Returns TRUE if the list of values being searched is in the array
ISBLANK	Returns the logical value TRUE if the value argument is a reference to an empty cell	ISBLANK(value)	Returns TRUE if AC is empty	ISBLANK(AC)
ISEMPTY	Returns the logical value TRUE if the value argument is a reference to an empty cell	ISEMPTY(value)	Returns TRUE if AC has no value	ISEMPTY(AC)
ISNUMBER	Returns the logical value TRUE if the value argument is a valid number	ISNUMBER(value)	Returns AC-PY/PY if the value is a number else returns 0	IF(ISNUMBER((AC-PY)/PY), (AC-PY)/PY , 0)
NOT	Changes FALSE to TRUE and TRUE to FALSE	NOT( logical_test )	Will return 50 if the region is not West otherwise returns 25	IF(NOT(Region == "West"), 50, 25)
OR	Returns TRUE if any of the arguments are TRUE and FALSE only if all arguments are FALSE	OR( logical_test1, [logical_test2], ... )	Will return 25 if the region is West or East otherwise returns 30	IF(OR(Region == "West", Region =="East"), 25, 30)
XOR	Returns a logical 'Exclusive OR' of all the arguments	XOR( logical_test1, [logical_test2], ... )	Will return 25 for all category in the West except for category Urban, and returns 25 for all Urban category under all region except for west, for all other items returns 30	IF(XOR(Region == "West", Category=="Urban"), 25, 30)

## Logical Operators

TITLE	OPERATORS	DESCRIPTION
AND	&&	Logical AND
OR	\|\|	Logical OR

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