Combining Texts

You have chosen 'Truth and the Past' by Michael Dummett, 'On the Conservation of Force' by Hermann von Helmholtz and 'Modal Logic as Metaphysics' by Timothy Williamson

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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