Andrew,
Which is beautifully symmetric. Alternatively, you can think about how you actually use it:map :: ((a -> b) -> [a]) -> [b]
I am not following here: what do you mean? Clearly, this is not a valid typing for map. Moreover, modulo undefinedness, there are no functions with this typing.
Cheers, Stefan _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
