[Haskell-cafe] Thompson's Exercise 9.13

[Cale Gibbard]

> 
> Oh. I haven't learned how to handle infinite data structures yet, but
> is init defined for infinite lists in the first place?
> 
> --
> Kaoru Hosokawa
> khosokawa at gmail.com
> 

Yes it is, try "init [1..]" in ghci or hugs. It just happens to be the
identity function on infinite lists, because of course there is no
last element to remove.

 - Cale