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seen Jan 29 at 18:38

Feb
13
comment Bound on sum of $x$ independent uniform random variables.
Okay. I'm not sure how Chernoff would help you here since $D_{i}$ are not binary or in ${-1,1}$.
Feb
13
comment Bound on sum of $x$ independent uniform random variables.
If we take $x=1$ then $Pr(D \leq \frac{n}{4}) \approx \frac{1}{4}$, no? Is there some condition on $x$?
Feb
13
comment If G is a finite group with an even number of elements, then binary product of two distinct elements is identity.
Well, you know that $ee=e$, and each $g \in G$ has a unique $g^{-1} \in G$. Can you see a way to continue from here?
Feb
13
awarded  Organizer
Feb
13
revised Mapping Proof Abstract Algebra (HW)
Replaced abstract-algebra tag with set-theory
Feb
13
suggested suggested edit on Mapping Proof Abstract Algebra (HW)
Feb
13
comment Mapping Proof Abstract Algebra (HW)
@Lilluda5 start with what you're given. Assume that $f:S \rightarrow S$ is one-to-one but not onto. Can you construct a $g:S \rightarrow S$ from $f$ that is onto?
Feb
12
revised $a_{n}b_{n} \rightarrow 0$ if $(a_{n})$ is bounded and $(b_n)$ converges to $0$
TeX'd the question.
Feb
12
comment If I wanted to show that an isometry is always continuous, is this right?
I think you might be confused about metrics. $d_{M}(p,q) \in \mathbb{R}$ by definition. $M$ is some metric space, and not necessarily $\mathbb{R}$, so you can't say that $\alpha \in M$.
Feb
12
suggested suggested edit on $a_{n}b_{n} \rightarrow 0$ if $(a_{n})$ is bounded and $(b_n)$ converges to $0$
Feb
12
awarded  Editor
Feb
12
revised If I wanted to show that an isometry is always continuous, is this right?
added 38 characters in body
Feb
12
answered Induction: prove using congruences
Feb
12
awarded  Citizen Patrol
Feb
12
answered A statement true about compacts but false about closed sets
Feb
12
awarded  Supporter
Feb
12
answered If I wanted to show that an isometry is always continuous, is this right?
Feb
12
awarded  Teacher
Feb
12
answered What is the difference between half space and hyper plane?
Feb
12
answered probability and combinations