theorem headroom_positive_iff_capacity_exceeds_burden
theorem headroom_positive_iff_capacity_exceeds_burden: ∀ (s : HeadroomState), 0 < headroom s ↔ s.commitmentBurden < s.grossCapacity
theorem headroom_positive_iff_capacity_exceeds_burden
theorem headroom_positive_iff_capacity_exceeds_burden: ∀ (s : HeadroomState), 0 < headroom s ↔ s.commitmentBurden < s.grossCapacity