2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/124430It is proved the mathematical theorem, that the wave function describes the statistical ensemble of particles, but not a single particle. Supposition, that the wave function describes a single particle appears to be incompatible with formalism of quantum mechanics.4 pages, 0 figures, The paper is reduced, because the reasons of incompatibility are omitted. These reasons are not discussedGeneral Physicstext