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def definition def or abbrev

neutral8

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formal statement (Lean)

  31def neutral8 (w : ℕ → ℝ) (i0 : ℕ) : ℝ :=

proof body

Definition body.

  32  (Finset.range 8).sum (fun i => w (i0 + i))
  33
  34/‑ Count legal triads in a finite list. -/

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