Combining Texts

You have chosen 'On the Soul (frags)' by Dicaearchus, 'Warrant and Proper Function' by Alvin Plantinga and 'Scientific Explanation and the Causal Structure of the World' by Wesley Salmon

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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