Combining Texts

You have chosen 'Writing the Book of the World' by Theodore Sider, 'Mathematical logic and theory of types' by Bertrand Russell and 'The Ego and Its Own' by Max Stirner

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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