Combining Texts

You have chosen 'Nominalism and Substitutional Quantifiers' by Ruth Barcan Marcus, 'Letters to Pierre Bayle' by Gottfried Leibniz and 'The Theory of Logical Types' by Bertrand Russell

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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