kjo

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1,612 reputation

1421

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visits	member for	1 year, 10 months
	seen	17 hours ago
stats	profile views	211

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71 Questions

votes activity newest

101	Can't argue with success? Looking for “bad math” that “gets away with it”
14	Looking for Cover's hubris-busting ${\mathbb R}^{N\gg3}$ counterexamples
12	Is the thingie/cothingie distinction absolute?
11	What's wrong with this definition of continuity?
10	Finding a more direct way to reach $\mathbb{E} \left( \sum (X_i - \mu)^2 \right) - \mathbb{E} \left( \sum (X_i - \overline{X})^2 \right) = \sigma^2$

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1,612 Reputation

+5	Is the thingie/cothingie distinction absolute?
+15	Do Boolean rings always have a unit element?
+20	Is the kernel of a homomorphism from a Boolean ring to $\mathbb{Z}_2$ always a maximal ideal?
+10	Why is Hardy motivating integrals be defining a new function $\phi'(x)=\psi(x)$?

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12 Answers

votes activity newest

5	Is every projection continuous?
4	Why is Hardy motivating integrals be defining a new function $\phi'(x)=\psi(x)$?
3	What's the dual of “inverse image” in Set?
2	Looking for math audio resources online
2	Looking for proof that ($\mathbf{E} =$ coequalizers, $\mathbf{M} =$ monos) yields an image factorization system

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61 Tags

6 category-theory × 30	1 notation × 6
5 general-topology × 9	1 homework
4 real-analysis × 7	1 limit
4 calculus × 3	0 abstract-algebra × 6
2 online-resources × 2	0 terminology × 6

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29 Accounts

	Stack Overflow	1,982 rep	423
$Mathematics Stack Exchange$	Mathematics	1,612 rep	1421
	Mathematica	518 rep	6
	German Language & Usage	484 rep	8
	Unix & Linux	420 rep	17

19 Badges

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Great Question	Good Question
Nice Question × 7	Yearling
Popular Question × 2	Cleanup
Notable Question	Self-Learner
Favorite Question	Critic

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160 Votes Cast

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