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2 points by mdemare 6119 days ago | link | parent

List monad in Arc:

    (def list-monad (seq . fns)
      (each f fns 
        (= seq (apply join (map f seq))))
        seq)

    (list-monad '(1 2 3 4 5) 
      [list (- _ 1) _] 
      [list (* 2 _) _])