Combining Texts

You have chosen 'On Plural Reference and Set Theory' by Helen Cartwright, 'Logic and Epistemology of Causal Relations' by G.H. von Wright and 'Treatise of Freewill' by Ralph Cudworth

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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