Combining Texts

You have chosen 'The General Theory of Employment' by Maynard Keynes, 'The Character of Physical Law' by Richard P. Feynman and 'Introduction to Mathematical Logic' by Michal Walicki

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All the ideas for Objects, or select a subheading:
      A. Existence of Objects
      B. Unity of Objects
      C. Structure of Objects
      D. Essence of Objects
      E. Objects over Time
      F. Identity among Objects