Combining Texts

You have chosen 'Function and Concept' by Gottlob Frege, 'Can Mechanisms Replace Laws of Nature?' by Bert Leuridan and 'Aristotle and Descartes on Matter' by Gottfried Leibniz

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All the ideas for Natural Theory, or select a subheading:
      A. Speculations on Nature
      B. Natural Kinds
      C. Causation
      D. Laws of Nature