Abstract
Recently Carrie S. Jenkins formulated an epistemology of mathematics, or rather arithmetic, respecting apriorism, empiricism, and realism. Central is an idea of concept grounding. The adequacy of this idea has been questioned e.g. concerning the grounding of the mathematically central concept of set (or class), and of composite concepts. In this paper we present a view of concept formation in mathematics, based on ideas from Carnap, leading to modifications of Jenkins’s epistemology that may solve some problematic issues with her ideas. But we also present some further problems with her view, concerning the role of proof for mathematical knowledge.
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Notes
One exception is Tennant (2010).
See Sjögren (2011b).
See Lear (1982), and Aristotle, Phys., Book II, 193b−194a.
See Sjögren (2011a) for examples and details.
Note that we are concerned here with extensional uniqueness or nonuniqueness. That some explications are (extensionally) unique may in some cases even be provable. See Sjögren (2011a), pp. 19-21, for a discussion concerning this issue.
Multiplication is still more complicated, but we will not dwell upon this here. See Bennet and Sjögren (2013) for comments.
In fact, Gödel’s proof assumes Peano arithmetic being even ω-consistent, which is a strictly stronger notion than pure consistency, while consistency is enough for Rosser’s proof of the Gödel-Rosser incompleteness result. For details see, e.g., Franzén (2005).
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The authors wish to thank the anonymous referees for valuable comments.
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Sjögren, J., Bennet, C. Concept Formation and Concept Grounding. Philosophia 42, 827–839 (2014). https://doi.org/10.1007/s11406-014-9528-8
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DOI: https://doi.org/10.1007/s11406-014-9528-8