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theorem proved tactic proof

defectSampledFamily_unbounded

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formal statement (Lean)

 449theorem defectSampledFamily_unbounded (fam : DefectSampledFamily)
 450    (hm : fam.sensor.charge ≠ 0) :
 451    ∀ B : ℝ, ∃ N : ℕ, B < annularCost (fam.mesh N) := by

proof body

Tactic-mode proof.

 452  intro B
 453  obtain ⟨N, hN⟩ := defect_cost_unbounded fam.sensor hm B
 454  refine ⟨N, ?_⟩
 455  have hcharge : ∀ n, ((fam.mesh N).rings n).winding = fam.sensor.charge := by
 456    intro n
 457    rw [((fam.mesh N).uniform_charge n), fam.charge_spec N]
 458  exact hN (fam.mesh N) hcharge
 459
 460/-- A realized sampled family with nonzero charge can never have bounded annular
 461cost. This is the contradiction theorem underlying the refined Axiom 2. -/

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