theorem crossing_irreversible {ρ_at_cross ρ_later : ℝ} (h_cross : 1 ≤ ρ_at_cross) (h_mono : ρ_at_cross ≤ ρ_later) : 1 ≤ ρ_later := le_trans h_cross h_mono
thesis/CESProofs/Hierarchy/EndogenousCrossing.lean:195
Proposition: Endogenous Crossing