OR

From AgileApps Support Wiki

The OR function evaluates two arguments and returns TRUE of one or both of the arguments are true. The function returns FALSE if both arguments are false.

Syntax
OR(logical1, logical2)
Element Description
logical1 Any argument that returns a Boolean value of TRUE or FALSE.
logical2 Any argument that returns a Boolean value of TRUE or FALSE.
Return
TRUE or FALSE
Example
OR(TRUE, TRUE) = TRUE
OR(TRUE, FALSE) = TRUE
OR(FALSE, TRUE) = TRUE
OR(FALSE, FALSE) = FALSE