If you use Power BI Desktop and want to know the version of the engine that you use and/or the compatibility levels supported, you can run the following DMV query:

SELECT * FROM $SYSTEM.DISCOVER_PROPERTIES
WHERE [PropertyName] = 'ProviderVersion'
   OR [PropertyName] = 'DBMSVersion'
   OR [PropertyName] = 'SupportedCompatibilityLevels'

It should work on DAX Query View even if you just ignore all the warning in the code editor, or use DAX Studio is you do not have access to the DAX Query View.

OR

Returns TRUE if any of the arguments are TRUE, and returns FALSE if all arguments are FALSE.

OR ( <Logical1>, <Logical2> )