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theorem proved term proof

jcost_log_symmetric

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formal statement (Lean)

  52theorem jcost_log_symmetric {x : ℝ} (hx : 0 < x) :
  53    Jcost x = Jcost x⁻¹ := Jcost_symm hx

proof body

Term-mode proof.

  54
  55/-- Away from 1, J-cost is strictly positive (isolation). -/

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