English Language & Usage
Dan Brumleve
  • Member for 10 years, 8 months
  • Last seen more than 5 years ago
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Amateur mathematician, professional software engineer. Interested in all kinds of math, becoming a better mathematician, and helping others do the same.

email: jdb1729 (at) gmail.com

let's be friends: http://facebook.com/jdb1729

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240
What is the importance of the Collatz conjecture?
214
Why can you turn clothing right-side-out?
70
Can't find the flaw in the reasoning for this proof by induction?
43
Is a prime factor of a number always less than its square root?
34
Uses of "Collatz induction"?

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