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lemma proved term proof

Flog_nonneg_of_derivation

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formal statement (Lean)

  70lemma Flog_nonneg_of_derivation {F : ℝ → ℝ} [AveragingDerivation F] (t : ℝ) :
  71  0 ≤ Flog F t := by

proof body

Term-mode proof.

  72  have := Jlog_nonneg t
  73  simpa [Flog_eq_Jlog_pt (F:=F) t] using this
  74

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