Combining Texts

You have chosen 'Writing the Book of the World' by Theodore Sider, 'On the Nature of Mathematical Reasoning' by Henri Poincar and 'Doing Without Concepts' by Edouard Machery

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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