Natural Discrete Differential Calculus in Physics

Foundations of Physics 49 (7):693-699 (2019)
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Abstract

We sharpen a recent observation by Tim Maudlin: differential calculus is a natural language for physics only if additional structure, like the definition of a Hodge dual or a metric, is given; but the discrete version of this calculus provides this additional structure for free.

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Carlo Rovelli
Aix-Marseille University

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