John Venn

English logician and philosopher (1834-1923)

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

John Venn


  • 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)

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