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age 23
visits member for 2 years, 3 months
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Doing math.


Apr
11
answered Why do some series converge and others diverge?
Apr
10
answered how to use holders inequality to show lq is a subspace of lp
Apr
10
answered Simply connectedness in $R^3$ with a spherical hole?
Apr
10
answered Homotopy on the unit circle
Apr
10
answered Is it possible to list $\mathbb{Q}$ so that the result set to be a monotonic sequence?
Mar
5
answered Using a contradiction to show something is not compact
Jan
2
answered $G_\delta$ sets
Dec
8
answered Are there any measurable, uncountable sets dense in [0,1] with Lesbegue measure less than 1?
Dec
6
answered Proof for Image of Indexed Collection of Sets?
Aug
28
answered How can I prove that this set is finite?
Mar
13
answered condition $\mu ^*(B\cup C)=\mu ^*(B)+\mu ^*(C)$
Mar
12
answered Let $\displaystyle f$ be a continuous real valued function on the metric space $\displaystyle (X,d)$.
Mar
11
asked Cardinality of the collection of all compact metric spaces
Mar
5
answered Continuity Properties
Mar
5
answered Suppose that $x$ is a fixed nonnegative real number such that for all positive real numbers $E$ , $0\leq x\leq E$. Show that $x=0$.
Mar
3
answered Prove $\operatorname{dist}(\overline{A},\overline{B}) = \operatorname{dist}(A, B)$
Mar
3
answered $x_n \in \mathbb R, \quad x_n \to A \implies \max \{x_n,A-x_n\} \to ?$
Mar
3
answered Are these subsets of $\mathbb{R}$ homeomorphic?
Mar
2
answered Let $ (x_n) $ be a divergent sequence in a compact subset of $ \mathbb{R}^n $. Prove there are two subsequences that converge to different limits.
Feb
28
answered Alternative proof of Monotone Convergence Theorem