  Recently, Colbeck and Renner (2011) [arXiv:1005.5173] published a theorem
that appears to be stronger than the Bell (1964) theorem in a way that is more
significant than the other variations of Bell's theorem that have been
published in the 50 years since Bell's theorem. Colbeck and Renner themselves
do not relate their theorem directly to Bell's theorem, so here I present a
version of the Colbeck-Renner theorem that makes the relationship explicit.
