theorem crossingProduction_pos {p₀ p_d τ β : ℝ} (hp₀ : 0 < p₀) (hpdτ : 0 < p_d + τ) : 0 < crossingProduction p₀ p_d τ β := rpow_pos_of_pos (div_pos hp₀ hpdτ) _
thesis/CESProofs/Macro/GreenTransition.lean:136
Green Energy Transition Extension