Combining Texts

You have chosen 'The Logic of What Might Have Been' by Nathan Salmon, 'The soul's dependence on the body' by Galen and 'The Foundations of Mathematics (2nd ed)' by Kenneth Kunen

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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