In this thesis, I argue that physicalism should be understood to be the view that mental properties are realized by physical properties. In doing this, I explore what the realization relation might be. Since realization is the relation that should help us formulate physicalism, I suggest that the theoretical role of realization consists in explaining some of the things that physicalists wish to explain. These are: How are mental properties metaphysically necessitated by physical properties? How are mental properties causally efficacious? (...) A theory of realization should provide resources for answering these questions. Having identified the theoretical role of realization, I discuss several theories of realization, but then focus on the subset view of realization. According to the subset view, a property P realizes a property Q if and only if the causal powers of Q are a proper subset of the causal powers of P. I argue that the realization relation as it is formulated by the subset view is a promising candidate to play the theoretical role that I want realization to play. I then investigate how this theoretical role is occupied. In doing so, I provide a general metaphysical framework that the defenders of the subset view can appeal to. This framework specifies in what ways properties are related to their causal powers. Discussing some problems that the subset view faces, I propose my own version of the subset view. I argue that a property P realizes a property Q if and only if the causal powers of Q are a proper subset of the causal powers of P, and P is more fundamental than Q. Thanks to the requirement that a realized property is less fundamental than its realizers, two things that the original version of the subset view cannot explain are guaranteed: first, fundamental properties are not realized; second, arbitrary conjunctions of properties do not realize their conjuncts. By showing how a theory of realization can help us explain some of the things that physicalists typically wish to explain, I also show that a non-reductive variety of physicalism does not face the problems that it is commonly thought to face. (shrink)

Worries about mental causation are prominent in contemporary discussions of the mind and human agency. Originally, the problem of mental causation was that of understanding how a mental substance (thought to be immaterial) could interact with a material substance, a body. Most philosophers nowadays repudiate immaterial minds, but the problem of mental causation has not gone away. Instead, focus has shifted to mental properties. How could mental properties be causally relevant to bodily behavior? How could something mental qua mental cause (...) what it does? After looking at the traditional Problem of Interaction, we survey various versions of the property-based problem and look at proposed solutions to them. (shrink)

For the nonreductive physicalist, behavioural effects have a complete physiological explanation and a distinct psychological explanation. In a series of papers Jaegwon Kim argues that there can be no more than a single complete and independent explanation of any one event, thereby excluding the psychological explanation. For his own part, Kim includes psychological explanations through the use of an extensional model of explanatory individuation. Numerous critics have pointed out the counterintuitive results of this extensional model of explanatory individuation. In a (...) recent article in this journal, Neil Campbell suggests that Kim's property exemplification account of events provides the conceptual resources to dodge this objection. In this article I argue that this appeal to the property exemplification account does not work in the crucial case of mental explanation. (shrink)

Stephen Yablo offers a solution to the problem of mental causation by claiming that the physical is a determinate of the mental's determinable, and therefore the mental and physical do not compete for causal relevance. I present Yablo's solution and argue that the mental‐physical relation cannot meet three necessary conditions for determination. That relation fails to meet the requirements that determinates of the same determinable be incompatible and that no property can be a determinate of more than one determinable. Further, (...) the mental and physical do not fall under the same series of scope inclusions as determinables and their determinates must. Yablo's conception of determination might be rendered more general to avoid these objections, but doing so would prevent it from functioning as a competitor to extant theories of the mental‐physical relation. Thus, Yablo's solution to the problem of mental causation cannot be both adequately specific and correct. (shrink)

Over the past few decades, Jaegwon Kim has argued that non-reductive physicalism is an inherently unstable position. In his view, the most serious problem is that non-reductive physicalism leads to type epiphenomenalism—the causal inefficacy of mental properties. Kim suggests that we can salvage mental causation by endorsing functional reduction. Given the fact that Kim’s goal in formulating functional reduction is to provide a robust account of mental causation it would be surprising if his position implies eliminativism about mental properties or (...) leads to a view that is similar to one of the versions of non-reductive physicalism that he criticizes. We will show that depending on how certain key claims are interpreted, there are reasons for thinking functional reduction has these implications, in which case either Kim fails to provide a robust account of mental causation or there is reason to suspect that some of his criticisms of non-reductive physicalism are misguided. (shrink)

Great naturalist philosophers like David Armstrong, David Papineau, Jeagwon Kim, and others have argued that the best arguments for naturalism are based on Physical Causal Closure. P.C that is a premise in these arguments implies that only natural/physical causes are responsible for natural events and supernatural/non-physical causes cannot have any effective role in the natural universe. By adding some reasonable rules such as Ockham’s Razor or Eleatic Principle to P.C, they have concluded that there is no non-natural cause such as (...) God.Many theists, in the face of the physical causal closure, may accept it and see the relationship between God and the natural world not as causal but as something entirely different; as existential or necessary relation. But this view seems to have problems. First, it is passive because it simply accepts the basic premise of the naturalistic view, and secondly, it seems unacceptable from a theistic point of view to reduce the relationship between God and the world to existential or necessary relation and to eliminate the possibility of causal influence on natural things.In this paper, I will claim that P.C is not only against supernatural causation but is also against human agency and mental causation. To show this, first, I will present an argument against human mental causation based on P.C, and Then I will consider four different physicalist approaches that try to save mental causation. These approaches consist of 1) anomalous monism, 2) non-reductive physicalism, 3) over-determination, and 4) reductive physicalism.The first solution is the idea that Davidson came up with to solve the problem of mental causation. By criticizing type identity and reductionism, he first re-examines the issue of mental causation in a new form. Examining the first, I will show that this approach cannot save mental causation, and, in fact, mental causation will be rejected in this view. The second approach, although it hopes to maintain both mental causation and commitment to the physical closure, this article will show that it wouldn’t succeed in doing either. Although at first glance, acceptance of over-determination may seem like a better solution, I show that this solution has fundamental problems, including the fact that in this approach mental causality becomes redundant, without which physical causes will produce the same result. But without a doubt, the main and popular solution of naturalists will be the last, that is, reductionism. Reductionism in this approach distances itself from early reductionism and seeks to establish a token identity between mental and physical states. But this moderate reductionism also faces fundamental problems such as the hard problem of consciousness, intention, and human agency, which will reject the possibility of its success. I will show, therefore, that none of these approaches can solve the problem of P.C and mental causation.By criticizing all of them, I will show that P.C has an absurd consequence and cannot be a plausible premise in the argument for naturalism. Therefore, the best argument for naturalism will fail and cannot work against God. (shrink)