Combining Texts

You have chosen 'A Problem about Substitutional Quantification?' by Saul A. Kripke, 'Introduction to the Philosophy of Religion' by Brian Davies and 'Two Chief World Systems' by Galileo Galilei

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