Combining Texts

You have chosen 'A Defense of Abortion' by Judith (Jarvis) Thomson, 'On the General Idea of Proof Theory' by Dag Prawitz and 'Identity and Essence' by Baruch Brody

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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