Combining Texts

You have chosen 'Phenomenalism' by A.J. Ayer, 'On the General Idea of Proof Theory' by Dag Prawitz and 'Principles of Nature and Grace based on Reason' by Gottfried Leibniz

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All the ideas for Nature of Minds, or select a subheading:
      A. Nature of Mind
      B. Features of Minds
      C. Capacities of Minds