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Κυριακή 17 Ιουνίου 2018

Explanation and abstraction from a backward-error analytic perspective

Abstract

We argue that two powerful error-theoretic concepts (backward error and conditioning) provide a general framework that satisfactorily accounts for key aspects of the explanation of physical patterns. This method gives an objective criterion to determine which mathematical models in a class of (possibly idealized) neighboring models are just as good as the exact one. The method also emphasizes that abstraction is essential for explanation and provides a precise conceptual framework that determines whether a given abstraction is explanatorily relevant and justified. Hence, it increases our epistemological understanding of how one should go about reconstructing scientific practices by making clear that, at a fundamental level, a key aspect of mathematical modeling consists in exactly solving nearby problems.



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