Combining Texts

You have chosen 'The Evolution of Logic' by William D. Hart, 'The Individual, the State, and the Common Good' by John Haldane and 'Does Conceivability Entail Possibility?' by David J.Chalmers

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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