Natural Discrete Differential Calculus in Physics

  title={Natural Discrete Differential Calculus in Physics},
  author={Carlo Rovelli and V{\'a}clav Zatloukal},
  journal={Foundations of Physics},
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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