Combining Texts

You have chosen 'On Plural Reference and Set Theory' by Helen Cartwright, 'Les quaestiones de anima (lectures on the soul)' by Blasius of Parma and 'Non-Monotonic Logic' by G. Aldo Antonelli

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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