Combining Texts

You have chosen 'Writing the Book of the World' by Theodore Sider, 'Apriority and Existence' by Stephen Yablo and 'The Runabout Inference Ticket' by Arthur N. Prior

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