theorem
proved
term proof
intensityAtRung_pos
show as:
view Lean formalization →
formal statement (Lean)
41theorem intensityAtRung_pos (k : ℕ) : 0 < intensityAtRung k := by
proof body
Term-mode proof.
42 unfold intensityAtRung referenceIntensity
43 have : 0 < phi ^ (-(k : ℤ)) := zpow_pos Constants.phi_pos _
44 linarith [this]
45