# Can you dispense with the use of the existence of Positive integrable function in Henstock theory especially in Fubini theorem.

In Henstock-Kurzweil integral in the proof of Fubini theorem you need a strictly positive integrable function for rectangles of infinite volume. How to deal with such situation in general setting . Lebesgue integral requires no condition for proof. Especially how to get such a function for Henstock-Kurzweil integral in general setting or in the setting of locally compact topological spaces, and complete separable metrizable spaces?

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