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- Otavio Bueno, Logicism Revisited.ln this paper I develop a new defense of logicism: one that combines logicism and nominalism. First, I defend the logtcist approach from recent criticisms; in particular from the charge that a crucial principle in the logrcist reconstruction of arithmetic, I·Iume’s Principle, is not analytic. In order to do that, I argue, it is crucial to understand the overall logicist approach as a nominalist view I then indicate a way of extending the nominalist logzcist approach beyond arithmetic. Finally, I argue that a nominalist can use the resulting approach to provide a nominalizatzon strategy for mathematics. In this way, mathematical structures can be introduced without ontological costs. And so, if this proixrsal is correct, we cansay that ultimately all the norminalist needs is logic (and, rather loosely, all the logicrst needs is nominalism).In my reading list | Discuss this article | Edit | Categorize |My bibliography
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Frege's logicism consists of two theses: (1) the truths of arithmetic are truths of logic; (2) the natural numbers are objects. In this paper I pose the question: what conception of logic is required to defend these theses? I hold that there exists an appropriate and natural conception of logic in virtue of which Hume's principle is a logical truth. Hume's principle, which states that the number of Fs is the number of Gs iff the concepts F and G are (...)
Frege's logicism consists of two theses: (1) the truths of arithmetic are truths of logic; (2) the natural numbers are objects. In this paper I pose the question: what conception of logic is required to defend these theses? I hold that there exists an appropriate and natural conception of logic in virtue of which Hume's principle is a logical truth. Hume's principle, which states that the number of Fs is the number of Gs iff the concepts F and G are (...)
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In the Foundations of Arithmetic, Frege famously developed a theory which today goes by the name of logicism - that it is possible to prove the truths of arithmetic using only logical principles and definitions. Logicism fell out of favor for various reasons, most spectacular of which was that the system, which Frege thought would definitively prove his thesis, turned out to be inconsistent. In the early 1980s a movement called neo-logicism was begun by Crispin Wright. Neo-logicism holds that Frege (...)
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What is at stake for Russell in espousing logicism? Peter Hylton has argued that Russell has a narrowly metaphysical motive for defending logicism. He maintains that for Russell in the early years of the twentieth century "logicism was the basis for a complex argument against idealism, of both the Kantian and the non-Kantian varieties." In particular, Russell was interested in refuting certain Idealist views on the nature of truth. By contrast, I argue that Russell's aims are chiefly epistemological and mathematical (...)
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| | Other links: muse.jhu.edu | Scholar | More.. Current versions of nominalism in the philosophy of mathematics have the benefit of avoiding commitment to the existence of mathematical objects. But this comes with the cost of not taking mathematical theories literally. Jody Azzouni's Deflating Existential Consequence has recently challenged this conclusion by formulating a nominalist view that lacks this cost. In this paper, we argue that, as it stands, Azzouni's proposal does not yet succeed. It faces a dilemma to the effect that either the view is not nominalist (...)
Over the last few decades Michael Dummett developed a rich program for assessing logic and the meaning of the terms of a language. He is also a major exponent of Frege's version of logicism in the philosophy of mathematics. Over the last decade, Neil Tennant developed an extensive version of logicism in Dummettian terms, and Dummett influences other contemporary logicists such as Crispin Wright and Bob Hale. The purpose of this paper is to explore the prospects for Fregean logicism within (...)
