;; The arithmetic operators and the comparisons both take a run of operands.
;; The orderings chain: each neighbouring pair is compared, and every pair has
;; to hold. != is the one that does not chain — it asks whether the operands
;; are all distinct, so a value repeated anywhere in the run makes it false.
(defn main [] ()
  (println (+ 1 2 3 4))
  (println (< 1 2 3))
  (println (< 1 3 2))
  (println (= 4 4 4))
  (println (!= 1 2 3))
  (println (!= 1 2 1)))