 The Ramsey approach was adopted, following Carnap, by others, notably David Lewis (1970), who put it to a rather different, more metaphysical use that was later adopted by Frank Jackson and other advocates of the “Canberra Plan” of conceptual analysis. This was also Chalmers’s (2012) point of departure, in his more metaphysical adaptation of the Aufbau, mentioned above  (section 3).  See the supplement  The Reconstruction of Scientific Theories (Section 4).