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- Henry W. Johnstone Jr (1956). Hume's Arguments Concerning Causal Necessity. Philosophy and Phenomenological Research 16 (3):331-340.
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My aim in this paper is to present what I consider to be the decisive objection against the ‘New Hume’ Causal realist interpretation of Hume, and to refute three recent attempts to answer this objection. I start in §1 with an outline of the ‘Old’ and ‘New’ interpretations. Then §2 sketches the traditional case in favour of the former, while §3 presents the decisive objection to the latter, based on Hume’s discussions of ‘Liberty and Necessity’ (i.e. free-will and determinism). In §§4-6, I consider in turn the recent responses of Helen Beebee, Peter Kail, and John Wright, and explain why these fail. My conclusion in §7 is that the New Hume can reasonably be considered as refuted, unless and until a more successful response is forthcoming, which (to me at least) looks extremely unlikely.
Much of what Hume calls probable reasoning is deliberate and reflective. Since there are aspects to Hume’s psychology that tempt some commentators to think, on the contrary, that for Hume all such reasoning is simple and immediate, I will be concerned to emphasize Hume’s recognition of the sophisticated sort of probable reasoning (section I). Though some of the details of my case may be new, the overall point of this section should not be news to recent scholarship. But once we recognize that this reflective and deliberate reasoning constitutes a significant portion of all probable reasoning, it becomes legitimate to ask how Hume accommodates this reasoning in his psychology, his ‘science of man.’ I believe that ..
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Causal necessity typically receives only oblique attention. Causal relations, laws of nature, counterfactual conditionals, or dispositions are usually the immediate subject(s) of interest. All of these, however, have a common feature. In some way, they involve the causal modality, some form of natural or physical necessity. In this paper, causal necessity is discussed with the purpose of determining whether a completely general empiricist theory can account for the causal in terms of the noncausal. Based on an examination of causal relations, laws of nature, counterfactual conditionals, and dispositions, it is argued that no reductive program devoid of essentialist commitments can account for all the phenomena that involve causal necessity. Hence, neo-Humean empiricism fails to provide a framework adequate for understanding causal necessity.
It is widely believed that Hume recognizes only two types of causality-one equivalent to a constant conjunction between two "objects," the other involving somesort of necessary connection between them. I will refer to these types, respectively, as "conjunction" and "necessity." I believe that Hume relies on a third type of causality-a process by which a constant conjunction of perceptions causes someone to acquire a mental habit. To remain close to Hume's terminology, I will refer to the process as "repetition." The main thesis of this paper is that this process, though causal, cannot be equated with either conjunction or necessity. Repetition is no small matter. It is the key to the correctness of Hume's overall account of causality and causal belief since it explains why humans have causal beliefs,why the causes they believe in need only be revealed in conjoined perceptions, and yet also why humans believe that a cause involves a necessary connection with its effect even though this belief is unverifiable.
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On the standard reading of Hume, the belief that the necessity associated with the causal relation is “an entirely mind-independent phenomenon” in the world isunjustified. For example, Jonathan Bennett writes that necessary connections of the sort that Hume allows are not “relations which hold objectively between the ‘objects’ or events which we take to be causally related.” Similarly, Barry Stroud writes that, according to Hume, we believe falsely “that necessity is something that ‘resides’ in the relation between objects or events in the objective world.” In this paper I argue that this reading of Hume is mistaken and that there is a sense of justification (viz., justification qua “proof”) according to which human beings are justified in holding the belief that the necessity associated with the causal relation is “an entirely mind-independent phenomenon” in the world.
This paper concerns anti-Humean intuitions about connections in nature. It argues for the existence of a de re link that is not necessity.Some anti-Humeans tacitly assume that metaphysical necessity can be used for all sorts of anti-Humean desires. Metaphysical necessity is thought to stick together whatever would be loose and separate in a Hume world, as if it were a kind of universal superglue.I argue that this is not feasible. Metaphysical necessity might connect synchronically co-existent properties—kinds and their essential features, for example—but it is difficult to see how it could also serve as the binding force for successions of events. That is, metaphysical necessity seems not to be fit for diachronic, causal affairs in which causal laws, causation, or dispositions are involved. A different anti-Humean connection in nature has to do that job.My arguments focus mainly on a debate which has been the battleground for Humean vs. anti-Humean intuitions for many decades—namely, the analysis of dispositional predicates—yet I believe (but do not argue here) that the arguments generalise to causation and causal laws straightforwardly.
In this paper I offer a straight solution to Hume's problem of induction by defusing the assumptions on which it is based. I argue that Hume's problem only arises if we accept (i) that there is no necessity but logical necessity, or (ii) that it is unreasonable to believe that there is any form of necessity in addition to logical necessity. I show that Hume's arguments in favour of (i) and (ii) are unsound. I then offer a suggestion as to how the weakness of his arguments has escaped detection. Finally, having claimed that there remains a surmountable problem with inductive arguments, I end by characterising that problem and a possible approach to its solution.
The ‘New Hume’ interpretation, which sees Hume as a realist about ‘thick’ Causal powers, has been largely motivated by his evident commitment to causal language and causal science. In this, however, it is fundamentally misguided, failing to recognise how Hume exploits his anti-realist conclusions about (upper-case) Causation precisely to support (lower-case) causal science. When critically examined, none of the standard New Humean arguments — familiar from the work of Wright, Craig, Strawson, Buckle, Kail, and others — retains any significant force against the plain evidence of Hume's; texts. But the most devastating objection comes from Hume's own applications of his analysis of causation, to the questions of ‘the immateriality of the soul’ and ‘liberty and necessity’. These show that the New Hume interpretation has misunderstood the entire purpose of his ‘Chief Argument’, and presented him as advocating some of the very positions he is arguing most strongly against.
Hume's arguments for the contention that causal necessity precludes logical necessity depend on the questionable principle that a cause must precede its effect. Hobbes' definition of entire cause, although it fails to account for causal priority, is not refuted by Hume. The objections of Myles Brand and Marshall Swain (Philosophical Studies, 1976) to my counterexample against Hume (Philosophical Studies, 1975) are ineffective. Their other objections to my criticisms of their argument against defining causation in terms of necessary and sufficient conditions (Synthese, 1970) are also mostly ineffective.
Discussion of Henry W. Johnstone Jr, Hume's arguments concerning causal necessity
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