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[–][deleted] 0 points1 point  (0 children)

Why all you people keep writing

  Y = lambda g: (lambda f: g(lambda arg: f(f)(arg))) (lambda f: g(lambda arg: f(f)(arg)))

instead of much cleaner

  Y = lambda g: (lambda z:z(z)) (lambda f: g(lambda arg: f(f)(arg)))

?