Re: TypeFamilies vs. FunctionalDependencies & type-level recursion

2011-06-14 Thread Andrea Vezzosi
On Tue, Jun 14, 2011 at 4:40 PM, Dan Doel wrote: > On Tue, Jun 14, 2011 at 5:36 AM, Simon Peyton-Jones > wrote: >> There was an interesting thread on haskell-prime [1], about the relationship >> between functional dependencies and type families.  This message is my >> attempt to summarise the c

Re: TypeFamilies vs. FunctionalDependencies & type-level recursion

2011-06-14 Thread Andrea Vezzosi
On Tue, Jun 14, 2011 at 6:31 PM, Dan Doel wrote: > Sorry about the double send, David. I forgot to switch to reply-all in > the gmail interface. > > On Tue, Jun 14, 2011 at 11:49 AM, > wrote: >> You absolutely still can use FunctionalDependencies to determine type >> equality in GHC 7.  For examp