/sci/ - Science & Math

how do 'you' read math books /mg/?

is it possible to define a quotient space with respect to multiple equivalence relations simultaneously?

what is the intuition behind continuity in terms of preimages of open sets?

set theory exam today. what is a set?

https://www.youtube.com/watch?v=cYuepljq5vA

Is there a well defined tetration operation for cardinals, where tetration of a real number [math]a[/math] is defined [eqn] {}^{n}a = \begin{cases} 1 & \text{ if } n=0 \\ a^{\left( {}^{n-1}a \right)} & \text{ if } n>0 \end{cases} [/eqn] . For example, [math]2^{3} = 2\cdot 2\cdot 2 = 8 [/math], while [math]{}^{3}2 = 2^{2^{2}} = 2^{4} = 16 [/math] ? If so, is it useful/interesting?

Is there anyway to recover results about finite matrices through the lens of functional analysis?

>>11043245
>Ye.
then what's the point of anything

>>10425590
huh?

any recommendations for a good intro to PDE's book?