Combining Texts

You have chosen 'What is Logic?st1=Ian Hacking' by , 'Science and Hypothesis' by Henri Poincar and 'Sense Data and the Percept Theory' by Roderick Firth

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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