Main.hs

--Haskellでラムダ

--syntax sugar
mul   = \x y -> x * y
mul'  = \x -> \y -> x * y

main = do 
        --束縛せずに書ける
        print $ (\x -> \y -> x*y) 4 5
        --カリー化  
        print $ mul   4  5
        print $ mul'  4  5
        print $ (mul  4) 5
        print $ (mul' 4) 5