Re: Predicativity

2003-07-14 Thread Olaf Chitil
> Nor do I know how Hugs and nhc manage to succeed! I don't think either > of them do fancy hash-consing of types. Maybe Malcolm W knows? Malcolm is on holidays. nhc98 doesn't do anything fancy with types. > | Since the type system is predicative, the leftmost instance > | of `copy' is instan

RE: Predicativity

2003-07-11 Thread Simon Peyton-Jones
Interesting. I hadn't realised that predicativity could affect size of types. Nor do I know how Hugs and nhc manage to succeed! I don't think either of them do fancy hash-consing of types. Maybe Malcolm W knows? Simon | -Original Message- | From: Ralf Hinze [mailto:[EMAIL PROTECTED]