Combining Texts

You have chosen 'The Really Hard Problem' by Owen Flanagan, 'Preface to 'De Revolutionibus'' by Andreas Osiander and 'Elimination of Metaphysics by Analysis of Language' by Rudolph Carnap

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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