/sci/ - Science & Math

>>15564375
I'm sorry, when I read that you were bad at multitasking I interpreted it as being bad at doing multiple things at the same time, not doing multiple things in general.

>>12554162
>>Basic Set Theory and Algebra: Hints on Representation, Topology, Geometry, Analysis
>book starts on basic set theory
>by page 86 it's started category theory
Wow. Now this is what I'd call industrial grade high voltage youth corruption material. It could turn a normal high school graduate into a category tranny in a single semester.

>>11464068
I misread the property as [math]a_{n+1}^2 + a_{n+1} = a_{n+2}^2 + a_{n+2}[/math] and just looked for a counterexample to [math]f(x)=x^2 +x[/math] being injective.

Someone ask something, I'm bored.
>>11438032
You stop with the not sleeping for 30 hours and getting stoned thing until your mind returns to regular working conditions.
>>11439156
The realest redpill is having healthy human interactions with friends and family.

>>11414154
>how are you supposed to do it with contradiction
The contradiction hypothesis is that, for any [math]n \in \mathbb{N}[/math], there is some [math]x_n \in (x_0 - 1/n, x_0 + 1/n)[/math] such that [math]f(x_n) \geq n[/math].
Then the [math]x_n[/math] converge to [math]x_0[/math] but [math]f(x_n)[/math] diverges, which completes the contradiction.
>that's the point
That's the hint.
And the hint is retarded, you use countable choice and contradiction for literally no reason. Chimpanzee tier proof.

>>11408281
>why yes, I solve systems of linear equations by googling "solver of linear equation", opening some link and plugging in the values, how could you tell?

>>11396496
Rough.
>>11396789
I dunno, but an anon asked about it in /sqt/ before the last thread thread: >>11376095

>>11380404
I'll double check to make sure, since the whole base/subbase/network thing always confuses me:
Does your definition of base directly imply it's closed under intersections?
And did the test actually tell you to the base generates some topology?
>>11380490
>>>/g/sqt