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lemma proved term proof

Jlog_eq_zero_iff

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formal statement (Lean)

  40@[simp] lemma Jlog_eq_zero_iff (t : ℝ) : Jlog t = 0 ↔ t = 0 := by

proof body

Term-mode proof.

  41  constructor
  42  · intro ht
  43    by_contra hne
  44    have : 0 < Jlog t := (Jlog_pos_iff t).2 hne
  45    linarith
  46  · intro ht
  47    subst ht
  48    simp [Jlog]
  49

used by (5)

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depends on (6)

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