def
definition
def or abbrev
twistedCostSpectrumValue
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formal statement (Lean)
45def twistedCostSpectrumValue (chi : ℕ → ℝ) (n : ℕ) : ℝ :=
proof body
Definition body.
46 n.factorization.sum fun p k => (k : ℝ) * twistedPrimeCost chi p
47