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Mar
3
comment Group theory, quotient groups?
Part of the question is answered here. For the rest, hint: first isomorphism theorem.
Mar
1
comment What do Algebra and Calculus mean?
@Tim I once heard that analysis is deduce things from the properties of the real numbers. That seemed accurate to me because everywhere in analysis one keep coming back to real numbers. Beautiful answer André.
Mar
1
comment What do Algebra and Calculus mean?
@gary Algebra is more than that. Your second definition applies to whatever.
Mar
1
revised Why does this converge to $\|x\|$
added 60 characters in body
Mar
1
revised Why does this converge to $\|x\|$
added 2 characters in body
Mar
1
revised Why does this converge to $\|x\|$
added 2 characters in body
Feb
5
awarded  real-analysis
Feb
4
revised composition of two measurable function
added 4 characters in body
Feb
1
revised How to prove the following recursive sequence produce relatively prime numbers
added 2 characters in body
Jan
31
answered How to prove the following recursive sequence produce relatively prime numbers
Jan
12
answered Vector subspaces of $\mathbb{R}[x]_n$ result
Jan
9
awarded  Announcer
Jan
4
comment If every vector is an eigenvector, the operator must be a scalar multiple of the identity operator?
Related
Dec
29
comment Prove $A=\{x\in \mathbb{R}|f(x)=x\}$ is closed subset of $\mathbb{R}$
Sequentially closedness.
Dec
20
awarded  Constituent
Dec
12
comment On the problem of polynomial bijection from $\mathbb Q\times\mathbb Q$ to $\mathbb Q$
What this seems like is material worth a blogpost.
Dec
11
revised $\lim_{p\to \infty}\Vert f\Vert_{p}=\Vert f\Vert_{\infty}$?
added 5 characters in body; edited title
Dec
11
comment
Relevant
Dec
10
comment If $\sigma$ is a cycle of length $r$, then it has order $r$?
@darijgrinberg Would you like to put your comment as an answer. I'll upvote it.
Dec
10
comment
@PedroTamaroff I don't chat as often as I used to, the few times I've been there recently, I found some things that made me form some opinion. For what is worth, I remember I used to appreciate being in chat when you were around. More, when the talk was about math. Just to make clear that I'm not trying to screw you on this elections.