Combining Texts

You have chosen 'The Metaontology of Abstraction' by B Hale / C Wright, 'Axiomatic Theories of Truth (2013 ver)' by Halbach,V/Leigh,G.E. and 'Concepts' by E Margolis/S Laurence

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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