[Haskell-cafe] Are functional dependencies around to stay?

Hi everyone, I'm wondering if there is any chance that functional dependencies will not be around in the future. I do not actually understand the subject yet as such, but I'd like to make sure before I get deeper into it that it's something that will be around in the time to come. What I understand of Haskell is that it's not so much "engineered" like other languages but more "derived" from Math, well the very foundations anyway. But some things I can not determine whether or not they are derived from math and thus will stay, or are engineered and might go away, functional dependencies for instance. Günther