Charles Hermes

Recent work in the truthmakers literature demonstrates that the logic of truthmaking is distinct from classical logic. Since free will is an ontological issue, and not merely a semantic issue, arguments about free will ought to be sensitive to these developments. In Truthmakers and the Direct Argument, Hermes argues that one of the main arguments for incompatibiilsm fails precisely where the truthmakers literature would predict. Here, I argue that similar problems make the Consequence Argument untenable.

The Direct Argument is an important argument for demonstrating that moral responsibility is incompatible with determinism because it makes no presuppositions about the nature of free will. One of the inference rules employed in the Direct Argument is rule A: If a proposition is broadly logically necessary, then it is true and no one is, nor ever has been, even partially morally responsible for the fact that the proposition is true. While inference rule A is assumed by all parties to the debate, I demonstrate that the rule is invalid

Direct source incompatibilism (DSI) is the conjunction of two claims: SI-F: there are genuine Frankfurt-style counterexamples (FSCs); SI-D: there is a sound version of the direct argument (DA). Eric Yang ( 2012 ) responds to a recent criticism of DSI (Campbell 2006 ). We show that Yang misses the mark. One can accept Yang’s criticisms and get the same result: there is a deep tension between FSCs and DA, between SI-F and SI-D. Thus, DSI is untenable. In this essay, we use an important yet overlooked distinction between truthmakers and determiners to help drive this point home

Almost everyone agrees, under some interpretation, that a world is nomologically accessible if and only if it obeys the laws of the base world. This surface agreement, however, has led many to attach little importance to different interpretations, thereby conflating two distinct concepts of nomological accessibility. According to the Shared Law Account (hereafter SL), a target world is nomologically accessible from the base world if, and only if, all and only the laws of the base world are laws at the target world. The Compossible Events Account (hereafiter CE) holds that a target world is nomologically accessible from the base world if, and only if, all events of the target world are compossible with the laws of the base world. After demonstrating that these accounts are distinct, I shall show that the distinction matters. Not only is the correct modal system for nomic necessity determined by which characterizes accessibility, but some arguments against Humean supenfenience depend upon SL. In the final section I show that CE is the correct interpretation.

Humean interpretations claim that laws of nature merely summarize events. Non-Humean interpretations claim that laws force events to occur in certain patterns. First, I show that the Lewis/Ramsey account of lawhood, which claims that laws are axioms or theorems of the simplest strongest summary of events, provides the best Humean interpretation of laws. The strongest non-Humean account, the scientific essentialist position, grounds laws of nature in essential non-reducible dispositional properties held by natural kinds. The scientific essentialist account entails that laws are a posteriori necessary truths. After showing that these are the best Humean and non-Humean accounts, I demonstrate that the Lewis/Ramsey account is better equipped for interpreting dispositions and counterfactuals. One distinction between the two accounts is whether counterfactuals, whose antecedents are physically possible, sometimes require closest worlds with different laws than the laws of the base world. On the Lewis/Ramsey account non-legal worlds will be necessary. If laws are merely summaries of events that occur then a world where the events are drastically different will often have different laws. The scientific essentialist, however, must demand that laws are the same in counterfactual reasoning because she grounds counterfactual reasoning in the essential dispositional properties of natural kinds. Recently, problems have developed for counterfactual analysis of dispositions due to finkish dispositions, mimicked dispositions, and masked dispositions. These difficulties have led some to abandon reductive accounts of dispositions. Doing so makes positions like scientific essentialism tenable. Yet, while scientific essentialism demands that dispositional properties cannot be reduced to categorical properties, the Humean has the opposite commitment. If dispositional properties are primitives in our ontology, then there is a stronger tie between events than Humeans admit. So, another major disagreement between these accounts is whether dispositions can be reduced. After examining why many attempts at reducing dispositions have failed, I offer one suggestion of how to reduce dispositions and demonstrate that keeping dispositional properties as primitives in our ontology is worse than the solution I offer

The truthmaker literature has recently come to the consensus that the logic of truthmaking is distinct from classical propositional logic. This development has huge implications for the free will literature. Since free will and moral responsibility are primarily ontological concerns (and not semantic concerns) the logic of truthmaking ought to be central to the free will debate. I shall demonstrate that counterexamples to transfer principles employed in the direct argument occur precisely where a plausible logic of truthmaking diverges from classical logic. Further, restricted transfer principles (like the ones employed by McKenna, Stump, and Warfield) are as problematic as the original formulation of the direct argument