FW: John Conway died

Kreinovich, Vladik vladik at utep.edu
Sun Apr 12 15:55:52 EDT 2020


According to Princeton University Conway's proudest achievement was the invention of new system of numbers, the surreal numbers—a continuum of numbers that include not only real numbers but also the infinitesimal and the infinite numbers, noting:
When he discovered them in 1970, the surreals had John wandering around in a white-hot daydream for weeks.
His surreal numbers inspired a mathematical novel by Donald Knuth, which includes the line:
“Conway said to the numbers, ‘Be fruitful and multiply.’”
He also invented a naming system for exceedingly large numbers, the Conway chained arrow notation.

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