Derp.hs

bad1 :: [Int]
bad1 = do
  x <- [1..10]
  let y = 3 in
  return (x * y)

good1 :: [Int]
good1 = do
  x <- [1..10]
  let y = 3 in
   return (x * y)

good2 :: [Int]
good2 = do
  x <- [1..10]
  let y = 3
  return (x * y)

err

    parse error (possibly incorrect indentation or mismatched brackets)
  |
5 |   return (x * y)
  |   ^
Failed, no modules loaded.