=+

(e) The r of (i) must coincide with the R. f = R*f of (ii).

A note on terminology. An f on the general (2, 7, u) is defined to be integrable not if (15.12) holds, but if (16.1) does. And an f on [0,1] is defined to be integrable with respect to Lebesgue measure not if L. f = L+f holds, but, rather, if