Combining Texts

You have chosen 'Boole calculus and the Concept script' by Gottlob Frege, 'Nature and Observability of Causal Relations' by Curt Ducasse and 'Liberalism and the Limits of Justice' by Michael J. Sandel

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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