2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/89887It has been established that endowing classical phase space with a Riemannian metric is sufficient for describing quantum mechanics. In this letter we argue that, while sufficient, the above condition is certainly not necessary in passing from classical to quantum mechanics. Instead, our approach to quantum mechanics is modelled on a statement that closely resembles Darboux's theorem for symplectic manifolds.5 pages, LaTeX. Some refs. addedQuantum PhysicsHigh Energy Physics - TheoryMathematical Physicstext