Combining Texts

You have chosen 'A World of States of Affairs' by David M. Armstrong, 'What is the Basis of Moral Obligation?' by H.A. Prichard and 'Mathematics is Megethology' by David Lewis

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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