Combining Texts

You have chosen 'On the Soul (frags)' by Dicaearchus, 'Grundgesetze der Arithmetik 1 (Basic Laws)' by Gottlob Frege and 'Critique of Practical Reason' by Immanuel Kant

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