Combining Texts

You have chosen 'Counterpart theory and Quant. Modal Logic' by David Lewis, 'Varieties of Meaning' by Ruth Garrett Millikan and 'Persistence, Change and Explanation' by Sally Haslanger

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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