Combining Texts

You have chosen 'Investigations in the Foundations of Set Theory I' by Ernst Zermelo, 'There are no ordinary things' by Peter Unger and 'on Goodman's 'Ways of Worldmaking'' by Willard Quine

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All the ideas for Mathematics, or select a subheading:
      A. Nature of Mathematics
      B. Foundations for Mathematics
      C. Sources of Mathematics