It literally says on the box that it's not a functional language and it's clear that the actual underlying CIL is class based. If you still want to call that F

It literally says on the box that it's not a functional language and it's clear that the actual underlying CIL is class based. If you still want to call that FP, then by all means. But then so is C# since you can do nearly exactly the same things in C#.