Combining Texts

You have chosen 'On the Nature of the Universe' by Lucretius, 'On the Foundations of Logic and Arithmetic' by David Hilbert and 'An Axiomatization of Set Theory' by John von Neumann

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All the ideas for Modes of Existence, or select a subheading:
      A. Relations
      B. Properties
      C. Powers and Dispositions
      D. Universals
      E. Nominalism