Combining Texts

You have chosen 'A Completeness Theorem in Modal Logic' by Saul A. Kripke, 'On Divination ('De divinatione')' by M. Tullius Cicero and 'The Architecture of Mathematics' by Nicholas Bourbaki

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All the ideas for Thought, or select a subheading:
      A. Modes of Thought
      B. Mechanics of Thought
      C. Content
      D. Concepts
      E. Abstraction