2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/90774We establish connections between the requirement of measurability of a probability space and the principle of complimentarity in quantum mechanics. It is shown that measurability of a probability space implies the dependence of results of quantum measurement not only on the properties of a quantum object under consideration, but also on the classical characteristics of the measuring device which is used. We show that if one takes into account the requirement of measurability in a quantum case, the Bell inequality does not follow from the hypothesis about the existence of an objective reality.8 pages, no figures, LatexQuantum PhysicsHigh Energy Physics - TheoryMathematical Physicstext