[Haskell-cafe] working Edison, a couple of collection modules, and typing troubles

[Samuel Bronson]

Whatever happened to Edison? I want to play with it and the one in the
HFL cvs repository won't build for me (and uses flat names).

I was trying my hand at writing some collection classes myself and I
can't figure out a good typing for map that will let me make Map an
instance of my Collection class...

I'm attaching what I have so far.

I don't much like the head of Mapping.

I expect oleg will have some crazy type-system trick up his sleeve.

-- Thankful-in-advance-ly yrs, Sam
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