Combining Texts

You have chosen 'An Axiomatization of Set Theory' by John von Neumann, 'Principles of Philosophy of the Future' by Ludwig Feuerbach and 'Possible Worlds' by Robert C. Stalnaker

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All the ideas for Science, or select a subheading:
      A. Basis of Science
      B. Scientific Theories
      C. Induction
      D. Explanation