Jorgen Hansen

Until recently, perdurantism has been considered to be incompatible with the presentist ontology of time. However, discussions about presentist theories of perdurance are now surfacing, one of the most prominent arguments for which being Berit Brogaard’s essay: “Presentist Four-Dimensionalism”. In this paper, I examine Brogaard’s argument in contrast to Ted Sider’s arguments for (an Eternalist theory of) the “Stage View”. I then argue for another (and, I think, novel) view of presentist perdurantism, which avoids the problematic consequences that Brogaard’s view faces, and which also successfully solves philosophical puzzles without the difficulties that Sider’s view faces. This view, which I call “Stage View Presentism,” thus seems to be an appealing alternative for presentists who remain impartial to both the endurantist and the worm theories of persistence.

Newly emerging neuroscientific evidence has important ramifications for the metaphysics of free will. In light of this new evidence, I examine the two most common notions of Libertarianism. I argue that advocates for both the agent-causation and causal indeterminist models of libertarian free will suppose a misguided depiction of what constitutes a free decision. In order to retain a consistent standpoint, I argue that libertarians must view the conscious decision-making process as one of an Architectural nature. Libertarians suppose (depending on their notion) that humans are either the primary cause of their actions, or that they at least have the option to do otherwise. For either of these claims to be necessarily the case, I argue that libertarians must regard humans as having the ability to create their decisions. This ability is a requirement of the Architectural framework, which I explain in detail. I continue my case against libertarian free will, by demonstrating that the Architectural conception is also mistaken, and that the conscious decision-making process is instead one of an Archaeological nature. In this new paradigm, our conscious minds simply discover decisions, rather than create them. I show that both neuroscientific and philosophical evidence support this new model of conscious decision making and I examine how this Archaeological view of conscious discovery significantly undermines libertarian free will.

The paper discusses ten philosophical problems in deontic logic: how to formally represent norms, when a set of norms may be termed ‘coherent’, how to deal with normative conflicts, how contraryto-duty obligations can be appropriately modeled, how dyadic deontic operators may be redefined to relate to sets of norms instead of preference relations between possible worlds, how various concepts of permission can be accommodated, how meaning postulates and counts-as conditionals can be taken into account, and how sets of norms may be revised and merged. The problems are discussed from the viewpoint of input/output logic as developed by van der Torre & Makinson. We argue that norms, not ideality, should take the central position in deontic semantics, and that a semantics that represents norms, as input/output logic does, provides helpful tools for analyzing, clarifying and solving the problems of deontic logic.