Theoria: An International Journal for Theory, History and Foundations of Science

Volume 16, Issue 3, Septiembre 2001

The Interdependence of the Core, the Heuristic and the Novelty of Facts in Lakatos’s MSRP

In this paper I try to explain why Lakatos’s (and Popper’s) conventionalist view must be replaced by a phenomenological conception of the empirical basis; for only in this way can one make sense of the theses that the hard core of an RP (Research Programme) can be shielded against refutations; that this metaphysical hard core can be turned into a set of guidelines or, alternatively, into a set of heuristic metaprinciples governing the development of an RP; and that a distinction can legitimately be made between novel predictions and facts to which a theory might have been adjusted post hoc. Two basic metaprinciples are finally examined: the (conservative) Correspondence Principle and various (revolutionary) symmetry requirements; both of these heuristic devices illustrate the fundamental role which, according to Lakatos, mathematics plays in the progress of empirical science.