In Living with Uncertainty Michael Zimmerman argues against the Objective view and for the Prospective view of morality. He claims that the conscientious agent would always choose the act that maximizes projected value, and that this is incompatible with Objectivism. Peter Graham defends Objectivism against Zimmerman’s attack. He argues that a conscientious agent must balance fulfilling obligations against avoiding the worst wrong-doings, and that this stance is consistent with Objectivism and with the agent’s choosing an act she believes to be (...) Objectively wrong. In Ignorance and Moral Obligation Zimmerman argues that Graham’s “Objectivism” is only terminologically distinct from his Prospectivism. I argue that Graham faces a dilemma: if his theory delivers different prescriptions from Zimmerman’s, those prescriptions are implausible. On the other hand, if his theory avoids such implausible recommendations, it now generates exactly the same recommendations as Zimmerman’s theory, and so does not constitute a serious challenge to it. (shrink)

In his recent book, Michael Zimmerman continues to defend the Prospective View, according to which moral obligation depends on evidence about both empirical and evaluative factors. In my commentary, I shall first focus on Zimmerman’s framework in which different moral theories are defined and distinguished. I argue that Zimmerman fails to formulate a clear and coherent distinction between The Prospective View and the Objective View, which he rejects. Then I turn to the so-called constraint #2, a crucial premise in Zimmerman’s (...) master argument against the Objective View. Here I argue that it should be given up so that we can give the right verdict in cases of fundamental moral uncertainty. More specifically, I shall argue that a morally conscientious agent can rationally choose the option that is guaranteed to be morally wrong in a Jackson-case of fundamental moral uncertainty. Finally, I shall argue that the Prospective View, in its most recent guise – according to which moral obligation depends on empirical and evaluative evidence the agent has actually availed herself of – has very troubling substantive implications that go against all traditional moral theories, as well as an earlier version of Zimmerman’s Prospective View. (shrink)

The present dissertation investigates certain facets of the logical structure of oughts – where “ought” is used as a noun, roughly meaning obligation. I do so by following two lines of inquiry. The first part of the thesis places oughts in the context of practical rationality. The second part of the thesis concerns the inference rules governing arguments about oughts, and specifically the inference rule of Reasoning by Cases. These two lines of inquiry, together, aim to expound upon oughts in (...) rationality and reasoning. The methodology used in this dissertation is the one of philosophical logic, in which logical, qualitative models are developed to support and foster conceptual analysis. The dissertation consists of four main chapters. The first two chapters are devoted to the role of oughts in practical rationality. I focus on the so-called Enkratic principle of rationality, which – in its most general formulation – requires that if an agent believes sincerely and with conviction that she ought to do X, then she intends to X. I develop a logical framework to investigate the (static and dynamic) relation between those oughts believed by the agent and her intentions. It is shown that, under certain minimal assumptions, the Enkratic principle of rationality is a principle of limited validity. The following two chapters of the dissertation constitute a study of the classical inference rule of Reasoning by Cases, which – in its simplest form – moves from the premises “A or B”, “if A then C” and “if B then C” to the conclusion “C”. Recent literature has called the validity of Reasoning by Cases into question, with the most influential counterexample being the so-called Miners’ Puzzle – an instance of Reasoning by Cases where “C” involves oughts. I provide a unifying explanation of why the Miners’ Puzzle emerges. It is shown that, within specific boundaries, Reasoning by Cases is a valid inference rule. (shrink)