Combining Texts

You have chosen 'Reply to 'Rorarius' 2nd ed' by Gottfried Leibniz, 'Mad Pain and Martian Pain' by David Lewis and 'The Foundations of Mathematics (2nd ed)' by Kenneth Kunen

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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