Combining Texts

You have chosen 'Mathematics and Indispensibility' by Elliott Sober, 'Letters to Wolff' by Gottfried Leibniz and 'Dialogue on human freedom and origin of evil' by Gottfried Leibniz

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