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Mathematics
Brian Moehring's user avatar
Brian Moehring's user avatar
Brian Moehring's user avatar
Brian Moehring
  • Member for 4 years, 11 months
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  • California, USA
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45
2022 MIT Integration Bee, Qualifying Round, Question 17
Jul 13, 2023
36
Please help me spot the error in my "proof" that the sum of two irrational numbers must be irrational
Nov 30, 2019
34
Is it possible to represent any positive integer with a sum of arbitrarily many distinct powers of $3$, $5$, and $7$?
Aug 15, 2019
22
Is "ln" (natural log) and "log" the same thing if used in this answer?
Sep 20, 2019
16
Does this family of sequences always reach $(1, 1)$ for any starting value?
Jul 17, 2023
14
Multiplicity of root $1$ of $nX^{n+2}-(n+2)X^{n+1}+(n+2)X-n$?
Jan 10, 2022
13
Axiom of choice hiding in seemingly trivial proof?
Aug 20, 2023
12
Are these sets of functions finite?
May 5
10
Show a ring is commutative if $r^2 = r + r$
May 1
10
Range of the map $(a_n)\to \prod_{n=1}^\infty(1+a_n).$
Feb 20, 2020