Fri, 31 Aug 2001 18:53:11 +0300, Cagdas Ozgenc pisze:

1) How can I hide an instance of a class imported from prelude?

You can't. A given class/type pair must have at most one instance in the whole program.

How do I define functions that work on all tuples?

You can't, and this is unfortunate. -- __("< Marcin Kowalczyk * qrczak@knm.org.pl http://qrczak.ids.net.pl/ \__/ ^^ SYGNATURA ZASTÊPCZA QRCZAK