Online research in philosophy

How do frogs represent their prey? This question has been the focus of many debates among proponents of naturalistic theories of content, especially among proponents of teleosemantics. This is because alternative versions of the teleosemantic approach have different implications for the content of frog representations, and it is still controversial which of these content ascriptions (if any) is the most adequate. Theorists often appeal to intuitions here, but this is a dubious strategy. In this paper, I suggest an alternative, empirical (...) test for theories of content. I propose that we should examine whether a theory generates content ascriptions that fit with our best scientific explanations of animal behavior. I then focus on the most prominent version of teleosemantics, Ruth Millikan’s consumer-oriented approach, and argue that it fails the empirical test in the frog case, since it yields a content ascription that (i) does not include properties that should be included (namely, being small, dark and moving ) and (ii) includes a property that should not be included (namely, being frog food ). This is an important result in itself, but it also demonstrates by way of example how progress can be made in the complex debate about theories of content. (shrink)

Morality and rationality are both normative: the moral claim “you ought to help others” is a genuine normative judgment, as well as the rational maxim “you ought to brush your teeth twice a day”. But it seems that there is a crucial difference these two judgments. In the first part of this paper, I argue that this difference is to be understood as a difference between two kinds of normativity: demanding and recommending normativity. But the crucial task is, of course, (...) to explain the difference. In the second part of this paper, I suggest that metaethical expressivists can provide a good explanation: by extending the analysis of ordinary (non-normative) demands and recommendations to normative judgments, they can formulate a convincing account that captures the key differences between morality and rationality. (shrink)

Truthmaker theorists hold that propositions about higher-level entities (e.g. the proposition that there is a heap of sand) are often made true by lower-level entities (e.g. by facts about the configuration of fundamental particles). This generates a problem: what should we say about these higher-level entities? On the one hand, they must exist (since there are true propositions about them), on the other hand, it seems that they are completely superfluous and should be banished for reasons of ontological parsimony. Some (...) truthmaker theorists—most prominently David Armstrong—have tried to solve this puzzle by arguing that these entities are ‘an ontological free lunch’, i.e. real existents that are still ‘no addition of being’. This answer is prima facie attractive, but I argue in this paper that the standard approaches to truthmaking—modal theories and grounding theories—are unable to vindicate the doctrine of the ontological free lunch, and thus fail to solve the problem of higher-level entities. Fortunately, there is a non-standard account of truthmaking available, the reductive explanation account, which succeeds where the standard approaches fail. (shrink)

Truthmakers are supposed to explain the truth of propositions, but it is unclear what kind of explanation truthmakers can provide. In this paper, I argue that ‘truthmaker explanations’ conflate two different explanatory projects. The first project is essentially concerned with truth, while the second project is concerned with reductive explanation. It is the latter project, I maintain, which is really central to truthmaking theory. On this basis, a general account of truthmaking can be formulated, which, when combined with a specific (...) theory of reduction (the ‘conceptual entailment approach’), yields a new analysis of truthmaking. This analysis is intuitively appealing and avoids the problem of necessary truths, which poses a serious obstacle for standard accounts. (shrink)

It is often claimed that Realism about universals is problematic because it cannot account for the relation between particulars and universals without falling prey to ,,Bradley's regress". In this article, I consider four different versions of this regress argument (the semantic regress, the explanatory regress, the ,One over Many' regress, and the truthmaker regress), each based on a different ,regress-generating' assumption. I argue that none of these arguments succeeds in refuting Realism. Still, I contend that two interesting conclusions can be (...) drawn from the discussion. First, ,Bradleyan' regress problems show that some arguments for Realism have to be abolished because they involve ,regress-generating' assumptions. Second, these problems suggest that Realists about universals should opt for a nominalistic treatment of the ,exempflification relation'. As it turns out, this account of exemplification has the further advantage of being more in line with a science-oriented metaphysics than all the traditional alternatives. German Es wird oft behauptet, dass der Universalienrealismus problematisch ist, weil er die Beziehung zwischen Partikularen (Einzeldingen) und Universalien nicht erklären kann, ohne ,,Bradleys Regress zum Opfer zu fallen. In diesem Artikel betrachte ich vier verschiedene Versionen des Regresses (den semantischen Regress, den explanatorischen Regress, den ,,One over Many-Regress und den Wahrmacher-Regress), die alle von unterschiedlichen ,,regress-generie-renden Voraussetzungen ausgehen. Ich argumentiere dafür, dass keines dieser Regressargumente den Universalienrealismus widerlegt. Dennoch, so behaupte ich, können aus der Diskussion zwei interessante Schlussfolgerungen gezogen werden: Erstens zeigen ,Bradleysche' Regressproblem, dass einige Argumente für den Universalienrealismus aufgegeben werden müssen, weil sie sich auf ,,regress-generierende Voraussetzungen stützen; zweitens legen diese Probleme nahe, dass sich der Universalienrealist bei der Behandlung der ,,Exemplifikationsrelation für eine nominalistische Strategie entscheiden sollte. Wie sich herausstellt, hat diese Analyse von Exemplifikation zudem den Vorteil, besser zu einer wissenschaftsorientierten Metaphysik zu passen als die traditionellen Alternativen. (shrink)