theorem oscillation_energy_decay {M : ℕ} (R : Fin M -> Fin M -> ℝ) (hR : IsPosSemidef R) (Hxi : Fin M -> ℝ) : 0 ≤ ∑ i, ∑ j, R i j * Hxi i * Hxi j := hR Hxi
thesis/CESProofs/Dynamics/PhillipsCycles.lean:136
Results 63-69: Phillips Curve, Endogenous Cycles, and Oscillation Energy