HIDDEN-VARIABLES AND THE 2 THEOREMS OF BELL,JOHN

Although skeptical of the prohibitive power of no-hidden-variables theorems, John Bell was himself responsible for the two most important ones. I describe some recent versions of the lesser known of the two (familiar to experts as the ''Kochen-Specker theorem'') which have transparently simple proofs. One of the new versions can be converted without additional analysis into a powerful form of the very much better known ''Bell's Theorem,'' thereby clarifying the conceptual link between these two results of Bell.