Authors
Thomas William Barrett
University of California at Santa Barbara
Hans Halvorson
Princeton University
Abstract
This paper presents a simple pair of first-order theories that are not definitionally (nor Morita) equivalent, yet are mutually conservatively translatable and mutually 'surjectively' translatable. We use these results to clarify the overall geography of standards of equivalence and to show that the structural commitments that theories make behave in a more subtle manner than has been recognized.
Keywords equivalent theories  scientific theories
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References found in this work BETA

Classical Mechanics Is Lagrangian; It Is Not Hamiltonian.Erik Curiel - 2014 - British Journal for the Philosophy of Science 65 (2):269-321.
What Do Symmetries Tell Us About Structure?Thomas William Barrett - 2017 - Philosophy of Science (4):617-639.
Structure and Equivalence.Neil Dewar - 2022 - Cambridge University Press.
On Translating Between Logics.Neil Dewar - 2018 - Analysis 78 (4):any001.
Ramsey Equivalence.Neil Dewar - 2019 - Erkenntnis 84 (1):77-99.

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