User Hagen von Eitzen - Aviation Stack Exchange

Hagen von Eitzen

Member for 8 years, 11 months
Last seen more than a month 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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Jul 23, 2017
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Aug 20, 2014
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Mar 30, 2014

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349

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

231

Why is empty set an open set?

175

Can you be 1/12th Cherokee?

134

Is tipping mandatory at Restaurants and Bars in Germany?

108

Connected metric spaces with disjoint open balls