Combining Texts

You have chosen 'Set Theory and related topics (2nd ed)' by Seymour Lipschutz, 'Elucidation of some points in E.Schrder' by Gottlob Frege and 'Reference and Generality (3rd ed)' by Peter Geach

start again     |    choose another area for these texts     |    all the ideas for this combination of texts
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