Hello all,

I'm reading stuff about the different types of arrays in Haskell ...

One of the things that I don't understand
 If I do:

import Data.Array
arr = listArray (1,10) [1..]

the type of arr is Array. My question is: is this array an instance of the type class defined in Data.Array.IArray?
Or there is another kind of immutable boxed array somewhere in haskell libraries?
The documentation makes a  reference to 'the Array type exported by Data.Array.IArray' but if I do:

import Data.Array.IArray
arr = listArray (1,10) [1..]

I get a couple of compiler errors

Ciao & thanks in advance 
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FB