If $k_1, k_2,\ldots,k_n$ are cardinals with $k_1$ the cardinality of a nonmeasurable set, and for $i = 2, 3,\ldots,n k_i$ is the cardinality of a set of reals which ...

We give a new and simpler proof of the Fubini theorem. The proof uses a different definition of measurability which allows for a more geometric approach than usual.