F# literally started as a Caml port to .Net by Don Syme. It's hard to be more derivative than that. It's right there in the historical acknowledgements part of

F# literally started as a Caml port to .Net by Don Syme. It's hard to be more derivative than that. It's right there in the historical acknowledgements part of the F# website [1]. [1] https://www.microsoft.com/en-us/research/project/f-at-microsoft-research/?from=http%3A%2F%2Fresearch.microsoft.com%2Fen-us%2Fum%2Fcambridge%2Fprojects%2Ffsharp%2Fack.aspx https://www.microsoft.com/en-us/research/project/f-at-micros...