Free Ultrafilters

April 2, 2011

Admit it… this is the first thing you thought, too.

(That’s Abraham Robinson, founder of Non-standard Analysis. I will have more to say about this soon.)

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2 Responses to “Free Ultrafilters”

  1. […] then hopefully this slide show is self-explanatory without need for a lecture. Also contains some spoofs. Contains a simple proof of Tychonoff’s product theorem using Robinson’s equivalent […]

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