- #1

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[itex]

\begin{align}

P(\vec{a},\vec{b})-P(\vec{a},\vec{c})=-\int{d\lambda\rho(\lambda)[A(\vec{a},\lambda)A(\vec{b},\lambda)-A(\vec{a},\lambda)A(\vec{c},\lambda)]}

\\

=\int{d\lambda\rho(\lambda)A(\vec{a},\lambda)A(\vec{b},\lambda)[A(\vec{b},\lambda)A(\vec{c},\lambda)-1]}

\end{align}

[/itex]

Here is a link to the original paper:

http://www.drchinese.com/David/Bell.pdf

I hope I am not missing something trivial, but thanks for you help!