  The PPF dependent fixed point result in algebraically closed Razumikhin
classes due to Agarwal et al [Fixed Point Theory Appl., 2013, 2013:280] is
identical with its constant class counterpart; and this, in turn, is reducible
to a fixed point principle involving SVV type contractions (over the subsequent
metric space of initial Banach structure), without any regularity conditions
about the Razumikhin classes. The conclusion remains valid for all PPF
dependent fixed point results founded on such global conditions.
