Mathematics - 2012-08-26 (page 4 of 5)

@JonasTeuwen My ideal life is in a detached house (so I don't have to hear any people) with 6 cats and 2 dogs : ) So we are currently missing 3 cats and 2 dogs for happiness and completion : )

8:57 PM

So, can we say that out of the entire set of the natural numbers, exactly 1/5 are divisible by 5? Or perhaps that the limit of the fraction of the natural numbers less than or equal to a given n and divisible by a given integer less than or equal to n approaches 1/that integer as n approaches infinity?

(the house preferably with a moat and a ditch in which hungry bears are waiting for intruders)

@Matt Should be easy to fix.

@JonasTeuwen Needs lots of nagging : ) But probably, yes.

@Matt Would you not take like this cerval + cat mix as a hungry predator?

@Matt Really? Maybe you can threaten with nagging.

That would already convince me.

@JonasTeuwen Nah, they're lovely and cute.

8:59 PM

I just don't know if that's so un-mathematically stated that I can't ask it. That's what I'd like to know. Possible answers are: 1. Go ahead and ask like that. 2. Go home and read until you know how to ask that properly.

@JonasTeuwen : D

user19161

@Annick You can try asking on main. I can give you an answer now but I think you should post on main.

@JonasTeuwen And they're clever. That's how I like them. : )

I will, then. Thanks, @WillHunting

@Matt Well, the ones very close the the wild thing are quite... large.

user19161

9:00 PM

@Annick I did not mean that I would post an answer though. But someone will. :-)

@Annick Seems like a honest question. Perhaps you will not get a solution but more like a different interpretation or explanation.

@JonasTeuwen Are you sure? I don't think they are.

@WillHunting Understood, I just want to know if it's okay to ask questions in such a talky/informal way.

user19161

@Annick Yes, just explain your question clearly.

@Matt Yes, I have seen and petted one.

9:01 PM

@JonasTeuwen Lucky you : )

Also it is quite strong. Likes to be like a cat.

But the one in the video looks quite normal sized.

Like you know a huge dog that plays like a kitten.

Yes, that is probably a bit further away.

Like fourth generation.

Hi folks

I'd want one F3 or F4.

Hi Old John!

I don't like it when they're mean.

9:02 PM

Hi Matt

The bottle of sake is empty!

It's the end...

@JonasTeuwen Was it nice or not?

@Matt Yes, but not really... a good lap cat.

@Matt Quick! Some beer!

@OldJohn Hello Sir.

@JonasTeuwen Do you think it would attack a burglar?

@Matt It is like slightly smaller than a female labrador if I remember correctly.

So it looks quite scary if you're burglar and you see like two shiny eyes.

That would be awesome.

9:05 PM

HOLY FUQ A TIGER

I didn't know that they could get that big.

: D

And the cat is like: AH A TOY!

Or: Dinner!

: )

@JonasTeuwen Do you know this?

So. Cute.

@JonasTeuwen Yo Jonas

I'd want a cougar but for that one would have to have a park.

9:08 PM

@Matt But what if it decides it is playful and pretends you are its prey...?

Don't know. Don't think they do that if they like you.

I guess if you mistreat them they might.

"No kitty no, don't puncture my carotid please".

Normal kitties might also do that. But not so harmful.

: D

And then it runs away at lightning speed (> Usain Bolt). That was why we named it Turbo.

And suddenly stops on the carpet and slides with carpet. Snowboarding kitty.

: D

9:10 PM

Kitties also like extreme sports.

Good grief - our party is over ... and we still have lots of food left over :(

anyone hungry?

@OldJohn What kind of party and what kind of food? (grad student speaking)

user19161

I posted an answer to the chat question, I hope it is right,

What Scotch do you have to go with the food?

@OldJohn Depends. : )

user19161

9:13 PM

Here math.stackexchange.com/questions/187233/…

What are the choices?

Retirement party for my wife and me - and the food left is burgers, chicken and sausages, mainly

Too much meat!

: O

lots of people brought wine as presents - and 2 people brought whisky :)

(for me to eat, I mean)

I'd have some wine though...

user19161

9:15 PM

@OldJohn Save it for tmr!

One bottle of whisky is encased in a wood+rope puzzle - you have to solve the puzzle before you can extract the bottle :)

Cool : )

@WillHunting Yep - going to have to eat a lot of burgers in next 2 days

user19161

I got +1 for my latest answer, yay!

@WillHunting well done!

(+2 now!)

9:18 PM

@OldJohn Oh, you have only recently retired?

@OldJohn Do you have a hammer? I can open it for sure.

Yep - at the end of last term

I love this beer, it is "Bommen & Granaten".

@OldJohn This one.

@JonasTeuwen No need - I solved the puzzle in 3-4 minutes :) (might have taken longer, but it was Lapraoigh!)

@JonasTeuwen That looks like a serious beer

@OldJohn It pretty much is.

Barley wine can be evil

9:21 PM

@OldJohn Especially if it is beer.

yep

Hops, hops, hops for my kingdom.

We don't need any crops, all we need are hops.

Not the networking kind.

The proof is in the eating.

Eating sounds good.

@Matt Even it is pudding... with raisins?

Eww.

Henning Makholm

9:27 PM

This guy is Kannappan's latest incarnation, isn't it?

@HenningMakholm Yep.

@HenningMakholm Heh.

Very confusing.

Hi!!!@OldJohn,@Jonas Teuwen,@Matt,@Henning!

user19161

@HenningMakholm Yes.

9:28 PM

Hi MeAndMath.

@MeAndMath Hi

Hi. Do I know you?

2

user19161

What?

Toolchain, toooolchain.

I think so.I was here yesterday,and the day before,and the day before it...
I liked your comment saying that people give you headache.

user19161

9:29 PM

That got a star!

@MeAndMath Oh.

Maybe I forgot. I have it quite often that people know me and I am like: how the fuq do you know me.

user19161

@JonasTeuwen You are the fourier god.

user19161

I am only the banana.

@JonasTeuwen Same here.

I am the walrus - goo-goo-gachoo :)

9:30 PM

@Matt Annoying eh? This dude, what is his name... Robbert Dijkgraaf also once said something about it. Be he is afraid to ask.

@OldJohn A Beatlish one?

@JonasTeuwen nice word - "beatlish" :)

Henning Makholm

The star was awarded on behalf of the People's Popular Front Against Pointlessly Obnoxious Overpinging.

4

@JonasTeuwen The "know me" part is not so annoying but the "greet me with my name" is.

@Matt "There were some students here that want to do similar research as you did for their MSc" Like uh, who? What.

OAuth is quite funny. I need seven pass OAuth. That will keep the idiots away.

The HTML guy must have been a masochist. Would he have tried to parse it using regex?

@PeterTamaroff Are you there?

9:37 PM

@MeAndMath Yeah.

Nighty nights.

@Matt night Matt

Night night.

@PeterTamaroff Are you too busy?

Wanted help...

Night @Matt!

@skullpatrol A new gravatar!

skullpatrol

Yep.

9:42 PM

@MeAndMath Kinda, but not too.

skullpatrol

askaway

it's about topology.Basis of a topology.

@MeAndMath OK.

Basis o f a topology is a collection of subsets of $X$ such that :For each $x\in X$,there is at least one basis element $B$ containing $x$;
If $x$ belong to the intersection of two basis elements $B_1$ and $B_2$ then there is a basis element $B_3$ containing $x$ such that $B_3\subset B_1\cap B_2$

@MeAndMath Yes.

Not of but for

Basis for some (a) topology on $X$.

9:52 PM

@skullpatrol The bull. Where is it?

Oh,sorry...OK.

@MeAndMath The idea is that if a collection $\mathscr B$ of subsets of $X$ has that property we can make obtain topology on the set $X$ out of all the possible unions of sets (elements) of$\mathscr B$.

@MeAndMath So what's the problem?

I fail to understand CouchDB databases properly. I if I just have simple numeric data per user, should I make a database per user?

Just needed a hand to show this:
Show that if $\mathscr A$ is a basis for a topology on $X$ , then the topology generated by $\mathscr A$ equals the intersection of all topologies on $X$ that contain $\mathscr A$.Prove the same if $\mathscr A$ is subbasis.

In my API I would map /bla to the database, I suppose. I have no clue about the performance of such a setup.

Help!!