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- Alexander Bird (2004). Strong Necessitarianism: The Nomological Identity of Possible Worlds. Ratio 17 (3):256–276.Dispositional essentialism, a plausible view about the natures of (sparse or natural) properties, yields a satisfying explanation of the nature of laws also. The resulting necessitarian conception of laws comes in a weaker version, which allows differences between possible worlds as regards which laws hold in those worlds and a stronger version that does not. The main aim of this paper is to articulate what is involved in accepting the stronger version, most especially the consequence that all possible properties exist in all worlds. I also suggest that there is no particularly strong reason for preferring the weaker to the stronger version. For example, Armstrong's instantiation condition on universals entails that according to strong necessitarianism every property is instantiated in all possible worlds. But first we do not need to accept Armstrong's instantiation condition, in part because his arguments for it are forceful only for a contingentist about laws and properties. Secondly, even if we do accept the condition, the consequence that all properties are instantiated is not itself contradictory, so long as any form of necessitarianism holds. Strong necessitarianism is prima facie counter-intuitive. But for that matter so is weak necessitarianism. Accepting either weak or strong necessitarianism requires denying the force of intuition in this area. And indeed we have every reason to deny the force of intuition and its primary source, imagination, concerning modal facts.Reading list | Discuss | Edit | Categorize |My bibliography
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We argue that the inference from dispositional essentialism about a property (in the broadest sense) to the metaphysical necessity of laws involving it is invalid. Let strict dispositional essentialism be any view according to which any given property’s dispositional character is precisely the same across all possible worlds. Clearly, any version of strict dispositional essentialism rules out worlds with different laws involving that property. Permissive dispositional essentialism is committed to a property’s identity being tied to its dispositional profile or causal role, yet is compatible with moderate interworld variation in a property’s dispositional profile. We provide such a model of dispositional essentialism about a property and metaphysical contingency of the laws involving it.
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| | Other links: analysis.oxfordjournals.org dx.doi.org | Scholar | At my library | More options ... In recent work on truth and truthmaking, D. M. Armstrong has defended a version of 'truthmaker necessitarianism', the doctrine that truths necessitate truthmakers. Truthmaker necessitarianism, he contends, requires the postulation of 'totality facts', which serve as ingredients of truthmakers for general truths and negative truths, and propositions, which function as the fundamental truth bearers. I argue that neither totality facts nor propositions need figure in an account of truthmaking, and suggest that both are artifacts stemming, albeit in different ways, from an ontologically shady 'linguisticizing' tendency to conflate features of descriptions and features of what is described.
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| | Other links: informaworld.com dx.doi.org | Scholar | At my library | More options ... The counterintuitive implications of law necessitarianism pose a far more serious threat than its proponents recognize. Law necessitarians are committed to scientific essentialism, the thesis that there are metaphysically necessary truths which can be known only a posteriori. The most frequently cited arguments for this position rely on modal intuitions. Rejection of intuition thus threatens to undermine it. I consider ways in which law necessitarians might try to defend scientific essentialism without invoking intuition. I then consider ways in which law necessitarians who accept the general reliability of intuition might try to explain away the intuitions which conflict with their theory.
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| | Other links: netfiles.uiuc.edu blackwell-synergy.com jstor.org dx.doi.org | Scholar | At my library | More options ... Necessitarian accounts of the laws of nature have an apparent difficulty in accounting for counterlegal conditionals because, despite appearing to be substantive, on the necessitarian thesis they are vacuous. I argue that the necessitarian may explain the apparently substantive content of such conditionals by pointing out the presuppositions of counterlegal discourse. The typical presupposition is that a certain conceptual possibility has been realized; namely, that necessitarianism is false. (The idea of conceptual possibility is explicated in terms of recent work in two-dimensional modal semantics.) If this sort of presupposition is made explicit in counterlegal utterances, we obtain a sentence such as: 'If it turns out that the laws of nature are contingent, then if the laws had been otherwise, then such and such would have been the case.' Sentences of this type are non-vacuous, and very often true. I argue that this goes a long way towards resolving the difficulty for necessitarianism.
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| | Other links: blackwell-synergy.com interscience.wiley.com jstor.org dx.doi.org | Scholar | At my library | More options ... In this paper I examine two principles of orthodox truthmaker theory: truthmaker maximalism - the doctrine that every (contingent) truth has a truthmaker, and truthmaker necessitarianism - the doctrine that the existence of a truthmaker necessitates the truth of any proposition which it in fact makes true. I argue that maximalism should be rejected and that once it is we only have reason to hold a restricted form of necessitarianism.
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| | Scholar | At my library | More options ... Metaphysical rationalism, the doctrine which affirms the Principle of Sufficient Reason (the PSR), is out of favor today. The best argument against it is that it appears to lead to necessitarianism, the claim that all truths are necessarily true. Whatever the intuitive appeal of the PSR, the intuitive appeal of the claim that things could have been otherwise is greater. This problem did not go unnoticed by the great metaphysical rationalists Spinoza and Leibniz. Spinoza’s response was to embrace necessitarianism. Leibniz’s response was to argue that, despite appearances, rationalism does not lead to necessitarianism. This paper examines the debate between these two rationalists and concludes that Leibniz has persuasive grounds for his opinion. This has significant implications both for the plausibility of the PSR and for our understanding of modality.
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| | Other links: dx.doi.org doi.wiley.com | Scholar | At my library | More options ... Reading list
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| | Other links: dx.doi.org | Scholar | At my library | More options ... This paper consists of four sections. The first section considers what the proof of necessitarianism in Spinoza's system requires. Also in the first section, Jonathan Bennett's (1984) reading of 1p16 as involving a commitment to necessitarianism is presented and accepted. The second section evaluates Bennett's suggestion how Spinoza might have been led to conclude necessitarianism from his basic assumptions. The third section of the paper is devoted to Don Garrett's (1991) interpretation of Spinoza's proof. I argue that Bennett's and Garrett's interpretations of Spinoza's necessitarianism have short-comings which justify an attempt to offer an alternative proof. In the proof given in the fourth section, it is argued that Spinoza derived necessitarianism from the conjunction of the following principles: (i) necessary existence of the substances; (ii) substance-property ontology; (iii) superessentialism; and (iv) the 'no shared attribute' thesis.
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| | Other links: interscience.wiley.com jstor.org dx.doi.org | Scholar | At my library | More options ... Dispositional essentialism entails necessitarianism about the laws. If the laws are deterministic, that seems to make many counterfactuals vacuous. This paper proposes a way of reconciling the possibility of miracles with necessary, deterministic laws, thus permitting standard Lewis semantics for counterfactuals.
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| | Other links: blackwell-synergy.com jstor.org dx.doi.org | Scholar | At my library | More options ... Suppose it is a law that all Fs are G. Does the law hold in all possible worlds? According to Necessitarianism, it holds in at least all those worlds containing F-ness. I argue that the Necessitarian must also take the law to hold in all those possible worlds which do not contain F-ness. Accepting the principle that a law can only hold in a world if it has some ontological grounding in that world, I argue that Necessitarianism is committed to the claim that any law holding in the actual world is grounded in every possible world, and that any law holding in any possible world is grounded in the actual world. In other words, Necessitarianism takes all possible laws to be actual.
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| | Other links: informaworld.com tandfonline.com dx.doi.org | Scholar | At my library | More options ... Discussion of Alexander Bird, Strong necessitarianism: The nomological identity of possible worlds
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