Combining Texts

You have chosen 'Abstraction Reconsidered' by Peter Geach, 'Causation and the Manifestation of Powers' by Alexander Bird and 'Towards a Universal Characteristic' by Gottfried Leibniz

start again     |    choose another area for these texts     |    all the ideas for this combination of texts
All the ideas for Existence, or select a subheading:
      A. Nature of Existence
      B. Change in Existence
      C. Structure of Existence
      D. Theories of Reality
      E. Categories