さて、1と2と3のリストは各言語で以下のようにかける。 lisp xs = (1 2 3)は xs = (1.(2.(3.()))) clean xs = [1,2,3]は xs = [1:[2:[3:[]]]] haskell xs = [1,2,3]は xs = 1:2:3:[] ocaml xs = [1;2;3]は xs = 1::2::3::[]さて、ここで、xxxという言語を考…