Combining Texts

You have chosen 'Counterpart theory and Quant. Modal Logic' by David Lewis, 'What Does It Take to Refer?' by Kent Bach and 'Towards a Universal Characteristic' by Gottfried Leibniz

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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