- #1

naima

Gold Member

- 938

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## Main Question or Discussion Point

hi PF

I read the no-go Kochen theorem using 18 vectors projection (here).

One attribute a value to an observable A: v(A)

This function is supposed to be linear and verify v(AB) = v(A) v(B)

so v(AB - BA) = v(A)v(B) - v(B)v(A) = 0 (v is a real number function)

v must assign v(id) = 1 because v(A id) = v(A)= v(A)v(id)

If A B - B A = h Id

v(AB - BA) = h

Why have we to go further and look for non contextuality argument?

I read the no-go Kochen theorem using 18 vectors projection (here).

One attribute a value to an observable A: v(A)

This function is supposed to be linear and verify v(AB) = v(A) v(B)

so v(AB - BA) = v(A)v(B) - v(B)v(A) = 0 (v is a real number function)

v must assign v(id) = 1 because v(A id) = v(A)= v(A)v(id)

If A B - B A = h Id

v(AB - BA) = h

Why have we to go further and look for non contextuality argument?