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Helium, for Learning Haskell

Bastiaan Heeren, Daan Leijen, and Arjan van IJzendoorn

Helium is a user-friendly compiler designed especially for learning the functional programming language Haskell. The quality of the error messages has been the main concern both in the choice of the language features and in the implementation of the compiler. Helium implements almost full Haskell, where the most notable difference is the absence of type classes. Our goal is to let students learn functional programming more quickly and with more fun. The compiler has been successfully employed in two introductory programming courses at Utrecht University.

In Proceedings of the 2003 ACM SIGPLAN Workshop on Haskell, Haskell '03, pages 62-71, 2003.

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