Combining Texts

You have chosen 'On Duties ('De Officiis')' by M. Tullius Cicero, 'What Required for Foundation for Maths?' by John Mayberry and 'Counterparts and Identity' by Robert C. Stalnaker

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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