Combining Texts

You have chosen 'The Evolution of Logic' by William D. Hart, 'Mathematics is Megethology' by David Lewis and ''Ostrich Nominalism' or 'Mirage Realism'?' by Michael Devitt

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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