Combining Texts

You have chosen 'Quodlibeta' by Henry of Ghent, 'Frege on Knowing the Third Realm' by Tyler Burge and 'On the Freedom of the Will' by Arthur Schopenhauer

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