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1d
comment So why isn't $\Bbb R^n = \oplus _{n = 1}^{m}\Bbb R^n$
Decomposed uniquely.
1d
revised How to visualise Bollobas' 1965 theorem?
added 444 characters in body
1d
comment $|A\times B|= \text{max}(|A|,|B|)$ for infinite sets
I will accept an answer when I've read into this a little more.
1d
revised How to visualise Bollobas' 1965 theorem?
edited body
1d
revised How to visualise Bollobas' 1965 theorem?
edited title
1d
asked How to visualise Bollobas' 1965 theorem?
Oct
18
comment $|A\times B|= \text{max}(|A|,|B|)$ for infinite sets
How would you apply Zorn here? The obvious partial ordering by inclusion doesn't work directly.
Oct
18
comment $|A\times B|= \text{max}(|A|,|B|)$ for infinite sets
@AsafKaragila I searched for a while and found similar questions that seemed similar but simply cited the result.
Oct
18
asked $|A\times B|= \text{max}(|A|,|B|)$ for infinite sets
Sep
30
awarded  Explainer
Sep
16
awarded  Popular Question
Sep
8
comment Best Sets of Lecture Notes and Articles
@AlexYoucis The Katok link has stopped working.
Sep
5
awarded  Yearling
Aug
16
accepted Proving the Weierstrass M-Test with topology
Aug
16
asked Proving the Weierstrass M-Test with topology
Aug
9
asked Is there a direct way of proving that all splitting fields are isomorphic?
Jul
28
comment how to show that $\mathbb{Q}[\sqrt[3]{2}]$ is a field? (by elementary means)
See here for a proof that if $a$ is algebraic, $F(a)=F[a]$.
Jul
23
comment How is $ \sum_{n=1}^{\infty}\left(\psi(\alpha n)-\log(\alpha n)+\frac{1}{2\alpha n}\right)$ when $\alpha$ is great?
You seem to have forgotten the $\pi^2$ term in the final line.
Jul
22
awarded  Nice Question
Jul
2
awarded  Curious