> Sometimes the type you end up with is too ambiguous and you'll need type annotations: E.g. what is the type of the term "2+3"? I don't think your example wor

> Sometimes the type you end up with is too ambiguous and you'll need type annotations: E.g. what is the type of the term "2+3"? I don't think your example works in the case of OCaml since the signature of (+) is int -> int -> int. Basic operators not being polymorphic is one of the specificities of OCaml.