Combining Texts

You have chosen '27: Book of Daniel' by Anon (Dan), 'The Foundations of Mathematics (2nd ed)' by Kenneth Kunen and 'Letters to Bentley' by Isaac Newton

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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