Combining Texts

You have chosen 'The Periodic Table' by Eric R. Scerri, 'On the Introduction of Transfinite Numbers' by John von Neumann and 'On the Principles of Indiscernibles' by Gottfried Leibniz

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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