Combining Texts

You have chosen 'Mathematical Logic (revised)' by Willard Quine, 'Why coherence is not enough' by James Van Cleve and 'A Universe from Nothing' by Lawrence M. Krauss

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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