Combining Texts

You have chosen '21: First Epistle of Peter' by St Peter, 'Mathematical Methods in Philosophy' by Horsten,L/Pettigrew,R and 'A Pragmatic Conception of the A Priori' by C.I. Lewis

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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