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seen Jul 25 at 20:18

Nov
6
revised a conjecture (of mine ) about primes
added 570 characters in body
Nov
6
comment a conjecture (of mine ) about primes
@Jose, where'd you get this from?
Nov
6
revised a conjecture (of mine ) about primes
added 83 characters in body
Nov
6
revised a conjecture (of mine ) about primes
added 83 characters in body
Nov
6
revised a conjecture (of mine ) about primes
added 78 characters in body
Nov
6
answered a conjecture (of mine ) about primes
Nov
5
comment {$\int_{[1/n,1]}f$} to converge and yet $f$ is not $L$-integrable over $[0,1]$
Ah, I get it, it has note one big spike but denumerably many - one for each $n$.
Nov
5
comment {$\int_{[1/n,1]}f$} to converge and yet $f$ is not $L$-integrable over $[0,1]$
@JonasMeyer: $f$ is just some function, how can it depend on $n$?
Nov
2
comment How to solve the exterior Dirichlet problem for Laplace's equation?
-1 for not showing effort or previous attempts.
Oct
28
comment Space with non-convergent Cauchy sequence
What is the definition of a "convergent space" and a "Cauchy space"? Do you mean "sequence" instead of "space"? In that case, try constructing a space in which nothing is Cauchy?
Oct
23
comment Prove that $\lim_{n\to \infty}\left (1+\frac{1}{2^n}\right)^{2^n}$ exists
@Badshah, then lookup a proof for this equivalence and apply it to your problem.
Oct
22
awarded  Nice Answer
Oct
21
comment Is this probability question wrong to begin with?
Short answer: yes. Longer answer: suppose any of the answers is correct (literally: try them all), and derive a contradiction for each of them.
Oct
10
comment Correct notation for change in a variable squared
How about $|E|^2$ (though this is something slightly different)? I would indeed say that $\Delta|V|^2$ is ambiguous.
Oct
3
comment Why is the sequence $(\langle x_n,a \rangle)$ Cauchy when $(x_n)$ is?
what is $a$ exactly?
Oct
3
comment Why are all polynomials with real roots factorizable?
@GerryMyerson, but not into linear binomials
Oct
2
comment Project in computer science and mathematics.
There is such a thing as "computational group theory", but I don't think it is a very fruitful subject, though I could be wrong.
Sep
29
comment Proof the following proposition: for all $n \geq 0, \mathrm{fib}(n) \leq n!$
A classical Brian M. Scott answer, correct and complete.
Sep
25
comment Why is $i! = 0.498015668 - 0.154949828i$?
Strictly speaking, under the usual definition the factorial is only defined for natural arguments, so you will have to use a generalized definition for $i!$.
Sep
24
comment Can I integrate both sides of this equation?
Note that it is in general incorrect to differentiate both sides of an inequality.