1 Mar
2009
1 Mar
'09
4:12 a.m.
Larry Evans wrote:
Except that a kind sounds like a universe at level 2 or 3. IOW, I guess haskell types are at level 1, and kines at level 2? Then I guess values would be at level 0?
Exactly.
Is there some version of haskell that has more levels in its type universe. If not, it there some reason for that limitation?
The language you're looking for is called Omega: http://web.cecs.pdx.edu/~sheard/Omega/index.html http://code.google.com/p/omega/ http://web.cecs.pdx.edu/~sheard/ And as the name implies, the levels go all the way to the top.
Is there some reference explaining the relationship of haskell types to nuprl type universes?
That one I can't help with :) -- Live well, ~wren