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      Knowledge is Power

      Scientific American October 1972

      Mathematical Games, October 1972

      Why the long arm of coincidence is usually not as long as it seems

      • By Martin Gardner on October 1, 1972

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      More in the October 1972 issue of Scientific American
      • 50 and 100 Years Ago, October 1972
      • The Amateur Scientist, October 1972
      • Books, October 1972
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