Why is it that when I do range in Haskell, this works:

[LT .. GT]

but this doesn't:

[LT..GT]

and what does this cryptic error mean:

<interactive>:1:2:
    Failed to load interface for `LT':
      Use -v to see a list of the files searched for.

<interactive>:1:2:
    A section must be enclosed in parentheses thus: (`LT..` GT)

However, When I use Ints, the second form (without spaces) works:

[1..3]
haskell
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