=+

(b) Take s = 2a and t = ax; use (22.22), together with the inequalities T(s) ≤

L(s) and R(2s) ≤ 2L(s), to prove Etemadi's inequality (22.10) in the form

(22.23)
M(3a)≤BE

(a) =1A3L(a).