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Show that if E is a Borel measurable subset of R, then {(x,y)| x-y is in E} is also measurable in the product space of Borel measures...
Also, if f is a measurable function, show that F(x,y)=f(x-y) is also measurable..
Also, if f is a measurable function, show that F(x,y)=f(x-y) is also measurable..