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Yeah, I'm sorry but I'm not sure if any of those examples are at the depth of a typical beginner who is learning what polymorphism is.


Even the first one? You can actually see the objects on the screen and move them with your mouse.


Oh, wait. That works. I just think that the lambda-calculus example may be a bit advanced for a programmer who's only starting to learn what polymorphism is. Not every coder starts off with Scheme.




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