Combining Texts

You have chosen 'Counterpart theory and Quant. Modal Logic' by David Lewis, 'Boole calculus and the Concept script' by Gottlob Frege and 'Empiricist View of Religion' by R.B. Braithwaite

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