Combining Texts

You have chosen 'On the Reduction of Necessity to Essence' by Fabrice Correia, 'On the General Idea of Proof Theory' by Dag Prawitz and 'The Problem of the Essential Indexical' by John Perry

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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