Combining Texts

You have chosen 'The Problem of Empty Names' by Marga Reimer, 'Darwin's Dangerous Idea' by Daniel C. Dennett and 'Justified Belief as Responsible Belief' by Richard Foley

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All the ideas for Modality, or select a subheading:
      A. Necessity
      B. Possibility
      C. Sources of Modality
      D. Knowledge of Modality
      E. Possible worlds