Combining Texts

You have chosen 'The Problem of Empty Names' by Marga Reimer, 'The Nature and Communication of Substance' by Gottfried Leibniz and 'The Nature of Existence vol.1' by J.M.E. McTaggart

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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