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Rene Schipperus

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 6 years, 10 months
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  • Last seen Feb 16 at 20:03

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104 How does Cramer's rule work? Sep 26 '16
44 The number $2^{29}$ has exactly $9$ distinct digits. Which digit is missing? Jun 3 '14
33 Finding the Roots of a Certain Quartic Equation Mar 7 '18
23 Has any error ever been found in Euclid's elements? Jun 24 '14
22 Proving ${\sum_{n=1}^\infty {1\over F_n}} <4$ Nov 29 '17
20 Why is Axiom of Choice required for the proof of countable union of countable sets is countable? Sep 21 '16
18 Lambert's Original Proof that $\pi$ is irrational. Aug 13 '14
17 Why did nobody prove undecidability by the “too many problems” argument? Nov 22 '17
15 Google Interview Question about a town where if a couple has a girl born, they can't have more children… Oct 1 '14
15 What is a Theta Function? May 30 '14
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