# Logical functions

<table><thead><tr><th width="324">NAME</th><th>DESCRIPTION</th></tr></thead><tbody><tr><td><a href="logical-functions/and">AND</a></td><td>Returns TRUE if all the conditions are TRUE</td></tr><tr><td><a href="logical-functions/in">IN</a></td><td>Returns TRUE if the list of values being searched is in the array</td></tr><tr><td><a href="logical-functions/isblank">ISBLANK</a></td><td>Returns the logical value TRUE if the value argument is a reference to an empty cell</td></tr><tr><td><a href="logical-functions/isempty">ISEMPTY</a></td><td>Returns the logical value TRUE if the value argument is a reference to an empty cell</td></tr><tr><td><a href="logical-functions/isnumber">ISNUMBER</a></td><td>Returns the logical value TRUE if the value argument is a valid number</td></tr><tr><td><a href="logical-functions/not">NOT</a></td><td>Changes FALSE to TRUE and TRUE to FALSE</td></tr><tr><td><a href="logical-functions/or">OR</a></td><td>Returns TRUE if any of the arguments are TRUE and FALSE only if all arguments are FALSE</td></tr><tr><td><a href="logical-functions/xor">XOR</a></td><td>Returns a logical 'Exclusive OR' of all the arguments</td></tr></tbody></table>

## Logical Operators <a href="#logical-operators" id="logical-operators"></a>

<table><thead><tr><th width="271">TITLE</th><th width="240">OPERATORS</th><th>DESCRIPTION</th></tr></thead><tbody><tr><td>AND</td><td>&#x26;&#x26;</td><td>Logical AND</td></tr><tr><td>OR</td><td>||</td><td>Logical OR</td></tr></tbody></table>
