5 Jul
2010
5 Jul
'10
2:36 p.m.
Brent Yorgey wrote:
On Sun, Jul 04, 2010 at 10:31:34AM +0100, Andrew Coppin wrote:
I have literally no idea what a type family is. I understand ATs (I think!), but TFs make no sense to me.
ATs are just TFs which happen to be associated with a particular class. So if you understand ATs then you understand TFs too, you just didn't know it. =)
How would that make sense though? I'm having trouble forming a mental image of how / why you'd use that...