Combining Texts

You have chosen 'Principia Mathematica' by B Russell/AN Whitehead, 'Interview with Baggini and Stangroom' by Roger Crisp and 'In Metaphysics' by John Duns Scotus

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