Combining Texts

You have chosen 'Nature and Observability of Causal Relations' by Curt Ducasse, 'Review of Aron 'Our Knowledge of Universals'' by H.H. Price and 'works' by William K. Clifford

start again     |    choose another area for these texts     |    all the ideas for this combination of texts
All the ideas for Mathematics, or select a subheading:
      A. Nature of Mathematics
      B. Foundations for Mathematics
      C. Sources of Mathematics