Combining Texts

You have chosen 'On Plural Reference and Set Theory' by Helen Cartwright, 'Material Beings' by Peter van Inwagen and 'The Logic of What Might Have Been' by Nathan Salmon

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All the ideas for Natural Reality, or select a subheading:
      A. Classical Physics
      B. Modern Physics
      C. Space
      D. Time
      E. Cosmology
      F. Chemistry
      G. Biology