Combining Texts

You have chosen 'Croce and Collingwood' by Gary Kemp, 'Les quaestiones de anima (lectures on the soul)' by Blasius of Parma and 'Remarks on the forces of inorganic Nature' by J.R. Mayer

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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