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PhoemueX

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

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50 Is there a function whose antiderivative can be found but whose derivative cannot? Dec 14 '15
29 Is it possible to characterize completeness of a normed vector space by convergence of Neumann series? Nov 30 '15
21 On clarifying the relationship between distribution functions in measure theory and probability theory Oct 16 '14
21 Is the characteristic polynomial of a matrix $\det(\lambda I-A)$ or$ \det(A-\lambda I)$? Nov 17 '18
20 Measurability of an a.e. pointwise limit of measurable functions. Jan 7 '15
19 Does a connected countable metric space exist? Jan 2 '16
16 If a function is Riemann integrable, then it is Lebesgue integrable and 2 integrals are the same? Dec 12 '14
15 If $\mu(E) > 0$, $\mu(F) = 0$, is $\mu(E + F) = \mu(E)$? Jun 19 '14
13 Can a function be square integrable without being integrable? Jun 7 '14
11 Do differentiable functions preserve measure zero sets? Measurable sets? Jul 16 '14
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