1351 
corresponding factors of Rip). Hence in each case APH Pl), 
algebraically. 
5e Proof of (8d') 
We have 
Yap) = 
1s 
'g| 
i Py» Yup) = O and YF; () is negative; hence theorem (8d') 
ig satisticd. If p = Py KP) oag eies te i ine WP) oe 
ir PAC PKB HIP) is positive and YAP) is negative. Finally, 
if p< P<, 
however, the factors for the expression VAP) are each either 
both Ve(p) and wip) are negative. In this case 
< f) ’ 
less than or equal in absolute value to the corresponding 
factors of Vo. Hence in each case V(P)> Vp), 
algebraically. 
be Proof of (8e) 
We are to prove that 
we) o> vf) oy + FEY o, 
P P 
or os cer oa al eee 
Gone 
