How do I see the type for operators in F# interactive?

Question

I am trying to explore the type of operators such as :: in F# interactive.

But I get these kinds of messages:

Unexpected symbol '::' in expression. Expected ')' or other token.

even if I surround it with (::).

Answer 1

I do it like this:

> let inline showmecons a b = a :: b;;

val inline showmecons : 'a -> 'a list -> 'a list

or

> let inline showmepow a b = a ** b;;

val inline showmepow :
   ^a ->  ^b ->  ^a when  ^a : (static member Pow :  ^a *  ^b ->  ^a)