Combining Texts

You have chosen 'Course of Positive Philosophy' by Auguste Comte, 'The Concept of Logical Consequence' by Alfred Tarski and 'Presupposition and Conversational Implicature' by H. Paul Grice

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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