Combining Texts

You have chosen 'The Gettier Problem' by Stephen Hetherington, 'Real Natures and Familiar Objects' by Crawford L. Elder and 'A Tour through Mathematical Logic' by Robert S. Wolf

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All the ideas for Existence, or select a subheading:
      A. Nature of Existence
      B. Change in Existence
      C. Structure of Existence
      D. Theories of Reality
      E. Categories