Combining Texts

You have chosen 'The Architecture of Theories' by Charles Sanders Peirce, 'Why there isn't a ready-made world' by Hilary Putnam and 'Mathematics without Numbers' by Geoffrey Hellman

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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