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      Digital & 4-Year Archive

      Scientific American June 1983

      Metamagical Themas, June 1983

      The calculus of cooperation is tested through a lottery

      • By Douglas R. Hofstadter on June 1, 1983

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      More in the June 1983 issue of Scientific American
      • Dark Matter in Spiral Galaxies
      • 50 and 100 Years Ago - June 1, 1983
      • Giant Volcanic Calderas
      View Full Contents
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