Combining Texts

You have chosen 'A Theory of Universals' by David M. Armstrong, 'Letters to Descartes' by Elizabeth, Princess of Bohemia and 'A Mathematical Introduction to Logic (2nd)' by Herbert B. Enderton

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All the ideas for Reason, or select a subheading:
      A. Nature of Reason
      B. Laws of Thought
      C. Styles of Reason
      D. Definition
      E. Argument
      F. Fallacies