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Hagen von Eitzen

Member for 10 years, 2 months
Last seen more than 10 years ago

von-eitzen.de/math/tntrep.xml
Bonn, Germany

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I did study math and had a knack for it, but I am sooo out of that business now ...

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Oct 13, 2014

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359

How can a piece of A4 paper be folded in exactly three equal parts?

245

Why is empty set an open set?

175

Can you be 1/12th Cherokee?

134

Is tipping mandatory at Restaurants and Bars in Germany?

110

Connected metric spaces with disjoint open balls