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lemma proved term proof

Jcost_unit0

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formal statement (Lean)

  12lemma Jcost_unit0 : Jcost 1 = 0 := by

proof body

Term-mode proof.

  13  simp [Jcost]
  14
  15/-- J(x) expressed as a squared ratio: J(x) = (x-1)²/(2x). -/

used by (40)

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depends on (2)

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