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age 25
visits member for 3 years, 9 months
seen 15 hours ago

Dec
11
revised $\lim_{p\to \infty}\Vert f\Vert_{p}=\Vert f\Vert_{\infty}$?
added 5 characters in body; edited title
Dec
6
revised Prove that $f $ is constant
edited title
Nov
28
revised How do I find the characteristic polynomial and eigenvalues?
deleted 4 characters in body
Nov
26
revised Verifying an equivalence relation
Formatting
Nov
26
revised Verifying an equivalence relation
added 7 characters in body
Nov
13
revised $A\in M_2(\mathbb C)$ and $A $ is nilpotent then $A^2=0$.How to prove this?
added 39 characters in body
Nov
12
revised Suppose $\{f_k\}$ is a sequence of $M$-measurable functions on $X$. Let $p_1$ and $p_2\in [1,\infty)$, and suppose $f_k\in L^{p_1}\cap L^{p_2}$.
added 1 character in body
Nov
12
revised Is there a simpler proof that $f(x,y,z) = 4x + 11y + 18z$ is surjective?
Formatting
Nov
10
revised Composition of measureable function with continuou function in $L^2[0,1]$
Formatting.
Nov
5
revised Give a counterexample to show that $(AB)^{-1} \neq A^{-1}B^{-1}$
edited title
Nov
4
revised Prove that g(y)>0 for all y in the real numbers
This has nothing to do with proof theory.
Nov
4
revised Let $V$ be a finite dimensional real vector space and let $A:V\to V$ be a linear map such that $A^2=A$
added 143 characters in body
Oct
29
revised A sequence of truncates of $f$
Formatting
Oct
29
revised How to factor $x^{4}-22x^{2}+9$ over real numbers?
Making a realistic title.
Oct
25
revised Product of bounded and convergent to $0$ sequence is a convergent to $0$ sequence
Formatting. Improving title. Removing unnecessary (obvious) stuff .
Oct
10
revised Does there exist such sequence?
added 23 characters in body
Oct
10
revised Show that if a positive integer $ n $ is composite then $ R(n) = \frac{10^{n}-1}{9}= 111…11 (n times) $ is composite
added 3 characters in body
Oct
10
revised Show that if a positive integer $ n $ is composite then $ R(n) = \frac{10^{n}-1}{9}= 111…11 (n times) $ is composite
added 2 characters in body
Oct
9
revised $AB$ is not invertible
n was used elsewhere as something else
Oct
7
revised Show that $f$ is a polynomial if it's the uniform limit of polynomais
Formatting