InfoPath Dev

 Hello world! I am stuck in a rut and I need someone to pull me out. I am trying to remove items from view based on the date so my code looks like this:

=if
(
[Team] in
(
"Independent Testing - Business Control & Channel Delivery",
"Independent Testing -  Complaints", 

)
&
[Report Month] <>
(
"12/01/2015", "01/01/2016", "02/01/2016", "03/01/2016"
),"OK", "NOT OK"
)
 But of course SharePoint is giving me a whammy!!! 

So - this is a validation formula in your SharePoint List? I wouldn't think a <> operator would work with a list...

 Thank you for responding, what operator can I use?

 Its actually a formula to remove those items I listed by the dates shown. But I am stuck. Do you know of a better why to do that?

 So, I'm still guessing where this formula is being used. Now I think you are saying it is a calculated column you are trying to create to be able to filter a view? Is that right?

Wouldn't the right syntax be something like =AND([Report Month] <> "12/01/2015", [Report Month] <> "01/01/2016", [Report Month] <> "02/01/2016", [Report Month] <> "03/01/2016")?

Here is an MSDN page with syntax info: https://msdn.microsoft.com/en-us/library/office/bb862071(v=office.14).aspx