theorem
proved
term proof
tier_power_positive
show as:
view Lean formalization →
formal statement (Lean)
37theorem tier_power_positive (t : NautilusTier) : 0 < (tierPowerRange t).1 := by
proof body
Term-mode proof.
38 cases t <;> simp [tierPowerRange] <;> norm_num
39
40/-! ## Power-to-Tier Mapping -/
41
42/-- Maps each Class C power to its minimum required Nautilus tier. -/