[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

View post   
File: 104 KB, 320x287, poohchair.png [View same] [iqdb] [saucenao] [google]
5884462 No.5884462[DELETED]  [Reply] [Original]

>"Welcome everyone"
>"In this course, we will assume that all fields are algebraically closed"
>turn pi radians and walk right out

Anyone else have bad first day stories? Honestly, if you're not working in generality then DROP the course!

>> No.5884472

With that logic you shouldn't be studying anything less general than category theory. I mean, hey, why bother studying fields in particular? They form such an ugly category and are just objects in the category of Rings. But then you can't say much about fields in particular, can you?

You have to make assumptions about the structures you're studying if you want to glean anything interesting.

>> No.5884478

too retarded to even think of a reply to

>> No.5884493

Are the p-adics algebraically closed?

What do their closures look like?

>> No.5884496

>>5884493
not closed

closing and completeing them is weird as fuck

>> No.5884503

>"Welcome to Analysis"
>"In this course we will assume all fields are Archimedean"
>multiply myself by e^ipi and walk right out

>> No.5884533

>>5884496
Any details?

>> No.5884534

>>5884462
>not algebraically closed

what is Q
what is R

>> No.5884546

>>5884462
Good thing you dropped the course. You're clearly too stupid to understand the difference between closed under binary operations, closed under limits (complete metric space), and algebraically closed.

http://en.wikipedia.org/wiki/Algebraically_closed

>> No.5884547

>>5884546
Why bother studying projective varieties over only algebraically closed fields?

Enjoy your shitty limited geometry.

Topos masterrace.

>> No.5884635

I assume the class was not required then.

>> No.5884643

>>5884533
just read koblitz book

>> No.5885077

>"Welcome everyone"
>"In this course we will assume 0.999... = 1"

>> No.5885079
File: 22 KB, 250x220, 1372601853932.png [View same] [iqdb] [saucenao] [google]
5885079

>>5885077

>> No.5885080 [DELETED] 
File: 776 KB, 1077x947, german finite drizzles.png [View same] [iqdb] [saucenao] [google]
5885080

>>5884462

>> No.5885081
File: 118 KB, 1077x947, german finite drizzles.jpg [View same] [iqdb] [saucenao] [google]
5885081

>>5884462

>> No.5885097
File: 115 KB, 591x530, le funny garbage collector man meme face.jpg [View same] [iqdb] [saucenao] [google]
5885097

>"Welcome everyone"
>"In this course, we will make heavy use of the LEM"

>> No.5885101

>In this course, we will assume all rings have a unity.

Left and never came back.

>> No.5885126

>>5884534
Fields he won't be working with in that course.
Also OP, you're retarded. I assume you're studying algebraic geometry. Real algebraic geometry is an entirely different field (haha) to the rest of algebraic geometry exactly because it is not over an algebraically closed field. The reals are ordered, however, so one often ends up dealing with semialgebraic sets instead of the usual subvarieties.

>> No.5885153
File: 90 KB, 318x235, lWPdJ.png [View same] [iqdb] [saucenao] [google]
5885153

I have one from the spring semester
>"Welcome to Federal Government class, I like to start off the day by having people mention political news. Anyone have anything?"
>Raise hand
>Yes you, your name is?
>It's Anon.
>Ok thank you Anon, what do you have?
>A law allowing open carry of firearms was introduced into the Texas Legislature
>Ahhh yes. Hopefully it passes and maybe the concealed carry on universities as well, I hate leaving my CZ outside in my car.
>MFW CZ and progun

>> No.5885375

>Welcome every
>In this course, forget everything you know about psych. I'm going to teach you about brain chemistry and how they affect decision making
>stayed the entire course
>pretty cool
And that my friends, is what a psych class should be. He did however on the very last day ask us to write down a dream we had, and he read them out loud to the class and did a classic Freudian analysis on it. Of course it was a joke, but pretty funny.

>> No.5885391
File: 12 KB, 241x230, 1370201001337.jpg [View same] [iqdb] [saucenao] [google]
5885391

>>5885153

>> No.5885437

>>5885153

Niiiice.

>> No.5885446

>>5884462
>In practically all applications, one can assume that fields are algebraically closed
>mathematicians think it isn't general enough.

This is why mathematicians never get anywhere...

>> No.5885450

>>5885446
>implying the field of natural numbers is algebraically closed

>> No.5885462
File: 41 KB, 285x330, tingting.jpg [View same] [iqdb] [saucenao] [google]
5885462

>>5885450
implying that natural numbers are a field???

>> No.5885475

>First day of university.
>Walk into analysis lecture.
>Full of redditors and channers with superiority complexes.
>The smell will haunt me for the rest of my days.

>> No.5885481

>>5885450
>natural numbers
>algebraic field

>> No.5885634

>>5885481
>implying 0 is not natural

>> No.5885696

>>5885126
He could have just been studying Linear Algebra and the prof wanted everything to have eigenvalues

>> No.5886260

>>5885696
>and the prof wanted everything to have eigenvalues

Why would he want that?

>> No.5886268

>>5885634
>still not a field

>> No.5887068

>>5886268
>implying ur mum's not a field

>> No.5887888 [DELETED] 

>>5887068

>> No.5888813

>>5887068
She isn't.

>> No.5889251

>>5884462
>OP's post is my life

>> No.5889513

>>5888813

Then how was I ploughing her last night?

Check and mate.

>> No.5889517

>>5889513

9/10
srs I lold

>> No.5889625

>>5888813
She is a finite field.

>> No.5889957

>>5889513
anally ruptured to the nth degree

>> No.5890049

3rd grade starts with remainders instead of decimals. Algebra starts with the assumption that variables are rational. Basic calculus starts with the assumption that quite a few limits don't exists. You'll end up learning all these things later. Unless you've somehow fucked up your schedule, buckle down and deal with it.

tl;dr I haven't taken this much math yet and probably have no idea what I'm talking about

>> No.5890659

>>5890049
>3rd grade starts with remainders instead of decimals.
That's good because decimals are flawed.

>> No.5890688

>"Welcome everyone"
>"In this course, we will study the p-adic Teichmüller Theory"
>I'm alright with that

I'm so intelligent, am I not, /sci/?

>> No.5890730
File: 634 KB, 160x120, dave chappelle, nodding, yes, agreement.gif [View same] [iqdb] [saucenao] [google]
5890730

>>5885081
>an introduction to drizzling

>> No.5890738

>>5890688
I'm struggling with complex geometry, please help me find an intuitive understanding of Teichmüller spaces.

>> No.5891125

>>5884472
You can say more about an individual apple than you can say about that which all apples have in common.

>> No.5891366

>>5890738
What textbook are you using right now?

>> No.5893067

>>5890738
>Teichmüller spaces.

A lot of people in my middle school used to have problems with these when they were introduced in 5th grade.

>> No.5893459

>>5885077
http://math.coe.uga.edu/tme/Issues/v21n2/5-21.2_Norton%20&%20Baldwin.pdf

>> No.5893825

>>5891125
What more are you able to say?

>> No.5894944

>>5893459
Interesting paper. Thanks.

>> No.5895761

>>5891366
The title is "mathematics for biologists".

>> No.5896978

>>5885462
Why are the natural numbers not a field? I'm sure a lot of math would be easier if they were a field.

>> No.5897687

>>5896978
Well, for one, they don't always have a multiplicative inverse. A condition that is needed.

>> No.5899195

>>5897687
They don't have a multiplication, so it doesn't make sense to speak of a multiplicative inverse. Therefore the set of naturals without multiplicative inverse is the empty set, which implies the natural numbers are a field.

>> No.5899860

>>5895761
What about the author(s)?

>> No.5901109

>>5899860
Richard Dawkins

>> No.5901143

>"Welcome everyone"
>"In this course we will assume that people behave rationally"
>turn arctan 1
>turn arctan 1
>turn arctan 1
>turn arctan 1
>walk right out

>> No.5901894

>>5901109
Thank you. I will try to find it.

>> No.5903321

>>5901143
Arctan 1 is 90 degrees. You turned around twice.

>> No.5903324

>>5903321
Nope it's 45