Combining Texts

You have chosen 'Material Beings' by Peter van Inwagen, 'Abortion and the Doctrine of Double Effect' by Philippa Foot and 'Truth and the Past' by Michael Dummett

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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