John Venn

      John Venn

      John Venn FRS (4 August 18344 April 1923) was a British logician and philosopher.

      Sourced

      • We endeavour to employ only symmetrical figures, such as should not only be an aid to reasoning, through the sense of sight, but should also be to some extent elegant in themselves.
        • Symbolic Logic (1881)

      External links

      Wikipedia
      Wikipedia has an article about:
      Last modified on 25 January 2013, at 00:05