  One item in this chain of argument has some textual support in Ockham: he did not believe that the relation of efficient causality was a thing distinct from its relata (Ockham, Quodlibet VI, qu. 12: Opera Theologica IX, pp. 629ff.) However, one can still believe this and hold that causality is a real relation, and Ockham did so believe (Adams 1987, p. 744; White 1990b). So this link in the chain is not found in Ockham.