Combining Texts

You have chosen 'Dialogue on human freedom and origin of evil' by Gottfried Leibniz, 'What is the Basis of Moral Obligation?' by H.A. Prichard and 'On the General Idea of Proof Theory' by Dag Prawitz

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