/sci/ - Science & Math

amirite?
[math]$\forall a\in A$ on a topology $T$ if $a \in B \subseteq$ A, $B\cap C=\{a\}$ and $B,C$ are open, then $a$ is not limit point of $B$.\\

Proof. Assume for contradiction that $a$ is a limit point of $B$. Then every open set containing $a$ must contain some point $z\in B$, but the only points that $B$ and $C$ share is a.$\bot$\\
$\square$[/math]

Durr durr loops outside cancel loops inside

>>9281635
>that post totally isnt me too. Stop criticising me!
>Calls others retarded evin wen he mak da spelin erar
Fuck off moron. You can't insult someone's intelligence when making simple grammatical errors.

How can we use imaginary numbers when you can't take the square root of -1

if math is sooo goood how come there exists paradoxes in it?

why 73 is a prime number?