Combining Texts

You have chosen 'Phenomenalism' by A.J. Ayer, 'What do powers do when they are not manifested?' by Stathis Psillos and 'Gentzen's Analysis of First-Order Proofs' by Dag Prawitz

start again     |    choose another area for these texts     |    all the ideas for this combination of texts
All the ideas for Modes of Existence, or select a subheading:
      A. Relations
      B. Properties
      C. Powers and Dispositions
      D. Universals
      E. Nominalism