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Jonathan Cender
  • Member for 8 years, 6 months
  • Last seen more than 4 years ago
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Undergraduate - several years at Harvard - no degree. Research assistant - several years in the Economics Dept at Stanford. Current pursuit - research on the mathematics of nothing. No institutional affiliation at present.

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8
Who invented the Riemann Sphere?
7
Why not to extend the set of natural numbers to make it closed under division by zero?
6
Was the height requirement for the Swiss Guard 6' 8"?
6
Who invented the Riemann Sphere?