Combining Texts

You have chosen 'Changes in Events and Changes in Things' by Arthur N. Prior, 'An Axiomatization of Set Theory' by John von Neumann and 'Ruling Passions' by Simon Blackburn

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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