Combining Texts

You have chosen 'Completeness of Axioms of Logic' by Kurt Gödel, 'Reply to Foucher' by Gottfried Leibniz and 'On the Moral and Legal State of Abortion' by Mary Anne Warren

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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