G. F. Stout is famous as an early twentieth century proselyte for abstract particulars, or tropes as they are now often called. He advanced his version of trope theory to avoid the excesses of nominalism on the one hand and realism on the other. But his arguments for tropes have been widely misconceived as metaphysical, e.g. by Armstrong. In this paper, I argue that Stout’s fundamental arguments for tropes were ideological and epistemological rather than metaphysical. He moulded his scheme to (...) fit what is actually given to us in perception, arguing that our epistemic practices would break down in an environment where only universals were given to us. (shrink)

Selection explanations explain some non-accidental generalizations in virtue of a selection process. Such explanations are not particulaizable - they do not transfer as explanations of the instances of such generalizations. This is unlike many explanations in the physical sciences, where the explanation of the general fact also provides an explanation of its instances (i.e. standard D-N explanations). Are selection explanations (e.g. in biology) therefore a different kind of explanation? I argue that to understand this issue, we need to see that (...) a standard D-N explanation of some non-accidental generalization (al Fs are Gs) may also ipso facto explain its contrapositive (all non-Gs are non-Fs), but the explanation is particularizable with respect to the former but not to the latter. This can be seen by noting that the Raven Paradox counterexample to the H-D model of confirmation also generates a counterexample to the D-N model of explanation (all ravens are black does not explain why the non-black shoe is a non-raven). In such cases it is natural to take the generalization with the positive predicates to have a particularizable explanation. However, this need not be the case, and in selection explanations it is the generalization with the positive predicates whose explanation is no particularizable. Thus there is no need to suppose that selection explanations are fundamentally different. (shrink)

ABSTRACT The argument of inference to the best explanation sets up that, given a phenomenon to be explained, several rival hypotheses race to provide an explanation and the hypothesis that explains the phenomenon better than its rival gives good reasons for the belief in its truth and, therefore, for the acceptance of such hypothesis. The argument supposes that these rival hypotheses share the same phenomenon to be explained. In this paper it is argued that, in a few scientific episodes, scientists (...) with different hypotheses, even if sharing the phenomenon to be explained, have different goals regarding the handling of the phenomenon; but then an issue arises as to the structure of the argument, since setting different aims to handle a phenomenon would result in an axiological targeting by the scientists, one not enclosed in the structure of the argument. In addition, axiological targeting can also show itself as something crucial for the issue of accepting a hypothesis, a state of affair not foreseen in the argument of inference to the best explanation again. The purpose of this paper is, by means of “research programs” principle by Imre Lakatos, and by means of a case study – the acceptance of the DNA double helix model – to sustain the concept that the axiological difference may prove to be crucial for the acceptance of one hypothesis rather than other rival hypotheses. (shrink)