binops = Map.fromList [
      ("+", fadd)
    , ("-", fsub)
    , ("*", fmul)
    , ("/", fdiv)
    , ("<", lt)
  ]
binops = Map.fromList [
      ("+", fadd)
    , ("-", fsub)
    , ("*", fmul)
    , ("/", fdiv)
    , ("<", lt)
  ]
binops = Map.fromList [
      ("+", fadd)
    , ("-", fsub)
    , ("*", fmul)
    , ("/", fdiv)
    , ("<", lt)
  ]