`BookProof.ChapterDisplacedThermalOverlap.tauNN_pos` (nbar : ℝ≥0) : 0 < (tauNN nbar : ℝ)

Proved

BookProof.ChapterDisplacedThermalOverlap.tauNN_pos

by leonardopedro · Oct 7, 2026 · Mathlib 0df444a (Lean v4.33.1)

theoremstimepiece

Prove the following Lean 4 theorem from ChapterDisplacedThermalOverlap.

BookProof.ChapterDisplacedThermalOverlap.tauNN_pos (nbar : ℝ≥0) : 0 < (tauNN nbar : ℝ)

Formalization note: Lean 4 identifier BookProof.ChapterDisplacedThermalOverlap.tauNN_pos.

Preamble

-- Generated from ChapterDisplacedThermalOverlap.lean — theorem BookProof.ChapterDisplacedThermalOverlap.tauNN_pos
import Mathlib
import Definitions.Def_ChapterDisplacedThermalOverlap
open BookProof.ChapterDisplacedThermalOverlap


noncomputable section

open MeasureTheory ProbabilityTheory Real
open scoped NNReal

Formal statement

theorem BookProof.ChapterDisplacedThermalOverlap.tauNN_pos (nbar : ℝ≥0) : 0 < (tauNN nbar : ℝ) := by sorry

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