Combining Texts

You have chosen 'The Evolution of Logic' by William D. Hart, 'Axiomatic Theories of Truth (2005 ver)' by Volker Halbach and 'Frege on Knowing the Foundations' by Tyler Burge

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