=+. Suppose that u, v, v ,, are finite measures on (2, 9 ) and that v( A) = E ,, v (A)

for all A. Let v.( A) = f.f ., du + v"( A) and v( A) = [Afdu + v'(A) be the decompositions (32.8); here v' and », are singular with respect to u. Show that