Abstract

Using Currie's critique as a foil, this paper reconstructs Lakatos's thesis that historiography of science is laden with normative assumptions about scientific rationality. It is argued that this thesis comprises both a heuristic claim and a constitutive claim. The Received Critique of Lakatos fails to see that "internal history" and "rational reconstruction" receive a special meaning (by which they designate "rational preconstructions") when used in the context of the heuristic claim. Currie avoids this mistake, but attributes to Lakatos an "investigation-surrogate claim" which misrepresents the heuristic claim, oversimplifying the relation Lakatos envisions between hard cores and the solutions they generate.