Corellian

cya quin

I'm trying to formulate the triangle problem in vectors to see if that helps at all. Prob not :)

but $c$ is a known fixed quantity?

Oh, $x$ and $y$ are not given fixed quantities. I was confused about the problem

learnèd, as in quite the learnèd student

like burnt

$B \setminus A \;=\; \{x\in B \mid x\notin A\}$

right.

nice

Cayley-Hamilton theorem

the characteristic equation

now I really might have overcomplicated it

oh no

at least proving the inverse of a UT matrix is UT is more involved than messing with indices

i don't understand it, but it's cool

that's cool

not sure how that would look

but I went columns by rows and argued from the sum of outer products

Yeah it's very dry

I may have overcomplicated a proof that the product of two (upper) triangular matrices is an (upper) triangular matrix

today is mother's day in spain, portugal, few others

yesterday was may day

helps to recall april only has 30 days

all good now

crap i forgot to send rent last nite

$\frac{1+X^2}{1-2X+X^3}$

test ${1+X^2}\over{1-2X+X^3}$

hmm yeah

but not pseudoinversion. that's neat

matrix inversion and adjugation are continuous

sooo

ancient greek. BCE

@copper.hat a long long time ago it was pronounced 'tau'

then yes ig

oh your codomain is powerset

set function as in $X$, $Y$ are simply sets. no extra structure

we now possess the mark of the beast

i got my second covid bijection the other day

$X$ and $Y$ are said to be isomorphic if the bijection $\phi$ is also a surjection

A set-function $\phi$ from $X$ to $Y$ is called a bijection if and only if $\phi$ is an injection

all i saw was please stomp on me

oh sorry that was conditional

:stomp:

that's a strange notation

i'll try a serious man

it is intense, in a peculiar way

i just watched it start to finish for the first time this night

no country for old men

i can't stop thinking of javier bardem

we call for good euler's return