Kochen and Specker proved fifty years ago that there could be no hidden variable principle underlying the possible outcomes of measurements of quantum methods that both uniquely determines these outcomes and เวฟ คา ซิ โน (http://jamaicaapps.info/index.php?qa=user&qa_1=88thaicasinoclub) renders them impartial of the context of measurement (1967).333In this paper, we use “contextuality” to refer solely to dependence on the context of measurement, and never on the context of preparation or transformation; these latter sorts of dependence are explored by Spekkens (2005). Particularly, there might be no task of sharp and context-unbiased values for properties such that these values are faithfully revealed by measurement.