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Permanent URI for this collectionhttps://hdl.handle.net/20.500.14288/6

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    A principle of universal strife: Ricoeur and Merleau-Ponty's critiques of Marxist universalism, 1953-1956
    (University of Pennsylvania Press, 2015) Department of Philosophy; Chouraqui, Frank; Faculty Member; Department of Philosophy; College of Social Sciences and Humanities
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    PublicationOpen Access
    An algebraic approach to physical fields
    (Elsevier, 2021) Fritz, Tobias; Department of Philosophy; Chen, Lu; Faculty Member; Department of Philosophy; College of Social Sciences and Humanities
    According to the algebraic approach to spacetime, a thoroughgoing dynamicism, physical fields exist without an underlying manifold. This view is usually implemented by postulating an algebraic structure (e.g., commutative ring) of scalar-valued functions, which can be interpreted as representing a scalar field, and deriving other structures from it. In this work, we point out that this leads to the unjustified primacy of an undetermined scalar field. Instead, we propose to consider algebraic structures in which all (and only) physical fields are primitive. We explain how the theory of natural operations in differential geometry-the modern formalism behind classifying diffeomorphism-invariant constructions-can be used to obtain concrete implementations of this idea for any given collection of fields. For concrete examples, we illustrate how our approach applies to a number of particular physical fields, including electrodynamics coupled to a Weyl spinor.