Combining Texts

You have chosen 'Changes in Events and Changes in Things' by Arthur N. Prior, 'Issues of Pragmaticism' by Charles Sanders Peirce and 'Paper of December 1676' 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