Combining Texts

You have chosen 'Parmenides' by Plato, 'Contrib to Critique of Hegel's Phil of Right' by Karl Marx and 'The Thesis that Mathematics is Logic' by Hilary Putnam

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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