Combining Texts

You have chosen 'On Second-Order Logic' by George Boolos, 'What are Sets and What are they For?' by Oliver,A/Smiley,T and 'Remarks on the Foundations of Mathematics' by Ludwig Wittgenstein

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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