Combining Texts

You have chosen 'Frege's Concept of Numbers as Objects' by Crispin Wright, 'On the Cosmos (lost)' by Philolaus and 'Mr Strawson on Logical Theory' by Willard Quine

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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