Combining Texts

You have chosen 'Set Theory and related topics (2nd ed)' by Seymour Lipschutz, 'Nature and Observability of Causal Relations' by Curt Ducasse and 'Parthood and Identity across Time' by Judith (Jarvis) Thomson

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