309 reputation
15
bio website
location
age 18
visits member for 6 months
seen Mar 25 at 12:45
stats profile views 37

Just started first year in Computer Science, Which means I have mostly math courses: Calculus 1, Linear Algebra 1 and Discrete math.


Nov
14
comment Proving the sup of $\{\frac{n-m}{n+m}|n,m\in \mathbb{N}, m<n\}$
oh yeah, I see... Damn it's annoying being stuck on a question because you accidently turned a sign around... Thanks!
Nov
14
asked Proving the sup of $\{\frac{n-m}{n+m}|n,m\in \mathbb{N}, m<n\}$
Nov
12
awarded  Commentator
Nov
7
accepted Proving a set of functions from $\mathbb{N}$ to $\{1,0\}$ is countable
Nov
7
revised Proving a set of functions from $\mathbb{N}$ to $\{1,0\}$ is countable
added 300 characters in body
Nov
7
comment Proving a set of functions from $\mathbb{N}$ to $\{1,0\}$ is countable
actually we didn't talk at all about of $\mathbb{N}^n$ like that. unless I missed a lot more then I can remember
Nov
7
comment Proving a set of functions from $\mathbb{N}$ to $\{1,0\}$ is countable
I tried looking at the private case of $|f^{-1}(\{1\})|=1$, But I'm not exactly sure how to write it. I understand that exists a function $g$ that maps every $n\in\mathbb{N}$ to the function for which $f(n)=1$, but how do I write it formally?
Nov
6
comment Proving a set of functions from $\mathbb{N}$ to $\{1,0\}$ is countable
Yep, these are the functions I try to prove there are countably infinite number of.
Nov
6
revised Proving a set of functions from $\mathbb{N}$ to $\{1,0\}$ is countable
added 417 characters in body
Nov
6
asked Proving a set of functions from $\mathbb{N}$ to $\{1,0\}$ is countable
Nov
4
accepted proving a simple function is bijective
Nov
4
comment proving a simple function is bijective
If you'll look at the edit you'll see that's exactly where I was when asking in the first place. Well, it's my fault for trying to post questions while on a bus. I got my answer I think , ty...
Nov
4
comment proving a simple function is bijective
how do I explain this function is infact bijective?
Nov
4
revised proving a simple function is bijective
expanded the question to what it was originally supposed to be
Nov
4
asked proving a simple function is bijective
Nov
3
accepted Using the AM-GM inequality on 2 elements to deduce it's true for 4?
Nov
3
comment Using the AM-GM inequality on 2 elements to deduce it's true for 4?
Got it, thanks...
Nov
3
asked Using the AM-GM inequality on 2 elements to deduce it's true for 4?
Nov
2
awarded  Editor
Nov
2
awarded  Supporter