2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/217110For a two-particle two-state system, sets of compatible propositions exist for which quantum mechanics and noncontextual hidden-variable theories make conflicting predictions for every individual system whatever its quantum state. This permits a simple all-or-nothing state-independent experimental verification of the Bell-Kochen-Specker theorem.LaTeX, 8 pagesQuantum Physicstext