Internal Set Theory

1998-04-10 Thread Jeff P. Burdges (Weasel)
This isn't a specifically Haskell related question, but has any one seen any applications of Internal Set Theory (Edward Nelson's approach to non-standard analysis) to functional programming or symbolic manipulation. I'm just beginning to learn about IST, but at least superficially it's

Types and Quantum Mechanics

1998-02-26 Thread Jeff P. Burdges (Weasel)
Hello, I'm an undergraduate student in mathematics. I don't really know much about Quantum Computing, but i'm interesting in proving that the Hindley-Milner type system is still safe if you allow supper-position. (This is all after restricting to reversible computations) I don't think this

Compiler time errors for fun a profit

1997-08-29 Thread Jeff P. Burdges (Weasel)
Is there a way to get Haskell give an arbitrary user defined compile time error? For example if true then 0 else ERROR "Fix the source!" would return 0, but if false then 0 else ERROR "Fix the source!" would give a compile time (not runtime) error and print the text. The reason is that for

Re: Standard Haskell web pages

1997-08-27 Thread Jeff P. Burdges (Weasel)
This is in response to your message about removing the overloading of list operations in ``Questions on the Table''---actually it more in response to the message about removing monad comprehension. I'm pretty new to Haskell (and functional programming in general), but my understanding is that