## Search found 501 matches

- Tue Apr 08, 2014 2:42 am UTC
- Forum: Mathematics
- Topic: Fields of characteristic 2?
- Replies:
**7** - Views:
**7533**

### Re: Fields of characteristic 2?

It requires a bit of checking, but for characteristic =/= 2, the alternating tensor property of the determinant is equivalent to the condition that if we have a duplicated entry we get 0. This condition is still meaningful in characteristic two, although obviously no longer equivalent. So we reformu...

- Sun Dec 29, 2013 10:51 pm UTC
- Forum: Mathematics
- Topic: Is it possible to prove that something is unprovable?
- Replies:
**24** - Views:
**7459**

### Re: Is it possible to prove that something is unprovable?

So basically, there's provable independence, and then there's just not being provable. Take any proposition P. Let Q = "our axioms are consistent -> P is independent". It could happen that this proposition Q is independent from our axioms. Your second case "and then there's just not ...

- Sat Dec 28, 2013 3:55 pm UTC
- Forum: Mathematics
- Topic: Is it possible to prove that something is unprovable?
- Replies:
**24** - Views:
**7459**

### Re: Is it possible to prove that something is unprovable?

I'm not sure why I keep returning here. It seems like I'm spinning my wheels against people determined to misinterpret my statements. I hope I'm not doing that. You are writing relatively long posts that contain a couple of core misunderstandings; things you take for granted that aren't so. It can ...

- Sat Dec 28, 2013 3:51 pm UTC
- Forum: Mathematics
- Topic: Is it possible to prove that something is unprovable?
- Replies:
**24** - Views:
**7459**

### Re: Is it possible to prove that something is unprovable?

I'm not sure why I keep returning here. It seems like I'm spinning my wheels against people determined to misinterpret my statements. I hope I'm not doing that. You are writing relatively long posts that contain a couple of core misunderstandings; things you take for granted that aren't so. It can ...

- Fri Dec 27, 2013 6:13 pm UTC
- Forum: General
- Topic: Hifaleetin' thoughts
- Replies:
**90216** - Views:
**9231492**

### Re: Unfetched hashes and turtle-excluding devices

The how have I not noticed that before thread not being found by me: Holy shit painstaking means pains-taking not pain-staking! My life is changed. I don't know how I never connected those phrases. This is like when I learned it wasn't star craving mad, or pre-Madonna. So, funny! You have changed t...

- Fri Dec 27, 2013 6:10 pm UTC
- Forum: General
- Topic: Hype your ripe snipes 'n' gripes
- Replies:
**28619** - Views:
**3533242**

### Re: Pant Thread (because we need more panting)

Onto a more fun rant. Fuck sandwiches. Well, let me be a bit more specific: fuck normal, run-of-the-mill, pack me in a brown bag sandwiches. Paninis are tasty, big awesome subs are tasty, toasted bread with melty cheese and sweet meats and a good kick of spice, all those interesting sandwiches are f...

- Fri Dec 27, 2013 5:30 pm UTC
- Forum: General
- Topic: Hifaleetin' thoughts
- Replies:
**90216** - Views:
**9231492**

### Re: Unfetched hashes and turtle-excluding devices

The how have I not noticed that before thread not being found by me: Holy shit painstaking means pains-taking not pain-staking! My life is changed. I don't know how I never connected those phrases. This is like when I learned it wasn't star craving mad, or pre-Madonna.

- Fri Dec 27, 2013 5:24 pm UTC
- Forum: General
- Topic: Hype your ripe snipes 'n' gripes
- Replies:
**28619** - Views:
**3533242**

### Re: Pant Thread (because we need more panting)

Time for a petty rant. I really dislike spending time with my grandmother. I don't actually dislike her, but it just seems like the only things she does when I'm there is criticize the way my family does things, or talk about how horrible things are. It just seems unpleasant.

- Fri Dec 27, 2013 1:40 pm UTC
- Forum: Mathematics
- Topic: Is it possible to prove that something is unprovable?
- Replies:
**24** - Views:
**7459**

### Re: Is it possible to prove that something is unprovable?

I am, at the most general level about which I have thought concerned with propositions P where we know that P being false (true) implies P is disprovable (provable) But no such implication exists. Incompleteness means there are true statements which are not provable. The entire rest of your argumen...

- Fri Dec 27, 2013 1:45 am UTC
- Forum: Mathematics
- Topic: Is it possible to prove that something is unprovable?
- Replies:
**24** - Views:
**7459**

### Re: Is it possible to prove that something is unprovable?

I continue to maintain that Fermat’s Last Theorem, and now I’ll also include the Goldbach conjecture, cannot be proven undecidable. My exposition was not the clearest. Forgive me for that. I’ll try once more to state what I’ve been thinking about, and hopefully to more successfully convey the full e...

- Thu Dec 26, 2013 5:45 am UTC
- Forum: Mathematics
- Topic: Is it possible to prove that something is unprovable?
- Replies:
**24** - Views:
**7459**

### Re: Is it possible to prove that something is unprovable?

Yeah, I suppose it depends what you interpret the statement "of the form of Fermat's last theorem" to mean. Roughly speaking, we can say that no such proof would make sense because (a) The space over which we are searching is countable, and we know how to ennumerate it exhaustively. (b) T...

- Tue Dec 24, 2013 5:30 pm UTC
- Forum: Mathematics
- Topic: Is it possible to prove that something is unprovable?
- Replies:
**24** - Views:
**7459**

### Re: Is it possible to prove that something is unprovable?

Yeah, I suppose it depends what you interpret the statement "of the form of Fermat's last theorem" to mean. Roughly speaking, we can say that no such proof would make sense because (a) The space over which we are searching is countable, and we know how to ennumerate it exhaustively. (b) Th...

- Fri Oct 18, 2013 7:54 pm UTC
- Forum: News & Articles
- Topic: The brain of Henry Molaison, the Momento Man
- Replies:
**27** - Views:
**5883**

### Re: The brain of Henry Molaison, the Momento Man

Memento, not Momento. I'm surprised only one person caught this.

- Tue Oct 15, 2013 9:07 pm UTC
- Forum: Mathematics
- Topic: n sided polygon, n < 3
- Replies:
**35** - Views:
**6727**

### Re: n sided polygon, n < 3

I'd just point out that you actually can only make di-gons on the sphere if the two vertices are antipodal, otherwise, the only proper lines between the two points are the two sections of the great circle they both lie on.

- Sat Sep 28, 2013 8:48 pm UTC
- Forum: General
- Topic: Lucky Ten Thousand (TIL)
- Replies:
**13421** - Views:
**1748613**

### Re: Today I Learned

This was a few days ago, but apparently black pepper the seasoning is no relation to any of the vegetables we call peppers. That blew my mind.

- Fri Sep 27, 2013 10:01 am UTC
- Forum: General
- Topic: Hype your ripe snipes 'n' gripes
- Replies:
**28619** - Views:
**3533242**

### Re: Pant Thread (because we need more panting)

Fuck you if you are a website and every link to the useful information I really need is a link to a video detailing said things. Fuck you. I can read very quickly, and do not want to be tied to the mind numbing pace and graphics you probably stick to appease the sheeple of this earth. Not to mention...

- Fri Sep 27, 2013 9:42 am UTC
- Forum: Fictional Science
- Topic: Motivations of Aliens to Visit Earth
- Replies:
**135** - Views:
**37572**

### Re: Motivations of Aliens to Visit Earth

http://www.smbc-comics.com/comics/20110114.gif I know it's about robots, but I think the same applies to aliens. I think it betrays a pretty horrifying truth about our species that we are basically only able to conceive of superior intelligences destroying us (Exception: God, when they make us). No...

- Fri Sep 13, 2013 2:03 am UTC
- Forum: Movies and TV Shows
- Topic: Burn Notice
- Replies:
**70** - Views:
**30836**

### Re: Burn Notice

Holy shitballs. That was some crazy shit right there. So many references back to the whole show. I cried when his mom just sat there, so normal, and then pulls out a detonator. Don't know what I think about the whole narrative framing device being him talking to Charlie. It was pretty obvious t...

- Mon Sep 02, 2013 9:41 pm UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

Holy hell, feel better.

- Fri Aug 02, 2013 2:55 am UTC
- Forum: Books
- Topic: Harry Potter and the Methods of Rationality
- Replies:
**1036** - Views:
**410288**

### Re: Harry Potter and the Methods of Rationality

I have a few chapters I like to reread now and again for their power. 96 has gained a place on that list alongside 45 and 81.

- Fri Aug 02, 2013 2:52 am UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

...So, now that we know B=A, we can rename the system... I AM NOT TALKING ABOUT PHYSICS. ALL I WANT IS PURE MATH. Sorry. I'll change it to pure math. ...So, now that we know y=x, we can rename the system... Jose http://static.tumblr.com/7c89102c7492ac77cec19adfbed2f841/1io9kuq/d1Jmg1d6s/tumblr_stat...

- Fri Aug 02, 2013 2:26 am UTC
- Forum: General
- Topic: Hype your ripe snipes 'n' gripes
- Replies:
**28619** - Views:
**3533242**

### Re: Pant Thread (because we need more panting)

I can kick the habit fairly easily, it's just a few day wean, or a day of unpleasantness, I do it every time the school term ends. It was just the epic combo of destroyed digestive system and caffeine withdrawal. Eh, I'm making excuses.

- Fri Aug 02, 2013 2:12 am UTC
- Forum: General
- Topic: Hype your ripe snipes 'n' gripes
- Replies:
**28619** - Views:
**3533242**

### Re: Pant Thread (because we need more panting)

the blazing headache was the caffeine withdrawal from not drinking anything except a few glasses of water for a day. The sweet soothing frappucino I imbibed right after vomiting relieved me fo that particular malady. My day feels much better now.

- Fri Aug 02, 2013 12:53 am UTC
- Forum: General
- Topic: Who the dickens are you?
- Replies:
**10922** - Views:
**2379430**

### Re: INTRO THREAD THE THIRD

I never introduced myself on this thread. I guess I should. Hi, I'm Dark Avorian, a name I gave myself in the old days of Runescape. Now I do math. Lots and lots of math. Not meth, math. Anywho, love y'all's forum. Imma stay right here.

- Fri Aug 02, 2013 12:50 am UTC
- Forum: General
- Topic: Hype your ripe snipes 'n' gripes
- Replies:
**28619** - Views:
**3533242**

### Re: Pant Thread (because we need more panting)

Dear human body, Fuck you. Really, I know you've housed my consciousness day in and day out for the past two decades, but fuck you. I love you, but you're fucking stupid. Let me tell you why. Well, let's start at the beginning. I guess I have no complaints about you vacating the entirety of our dige...

- Fri Aug 02, 2013 12:43 am UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

Here is the post in question. Note that Steve actually does the Galilean transformation correctly; he just denies that this is what he's done. His problem isn't conceptual, it's notational. He's convinced himself that the symbols x and x' mean something different than what everyone else takes them ...

- Sat Jul 27, 2013 1:56 pm UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

x' =x -vt refers to the space and time coordinates of A SINGLE EVENT. NOT A POINT IN SPACE OVER TIME.

Also, steve. Suppose I said that when y = 0, then x = x'. Does that always mean that the x and x' axis are in the same place.?

Also, steve. Suppose I said that when y = 0, then x = x'. Does that always mean that the x and x' axis are in the same place.?

- Sat Jul 27, 2013 3:20 am UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

I don't know why I'm doing this. But: I will herein attempt to explain, in a single post, what x' = x -vt means to me. This equation occurs in the context of a four dimensional environment which we may just as well think of purely mathematically. This environment (really this manifold, but you appar...

- Wed Jul 24, 2013 7:50 pm UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

Honestly, there are so many misconceptions floating around that I'm not sure we'll ever get to the bottom of this (one thought, if someone is willing to animate a video with a voiceover, lucid commentary, and some nice animations, that might help). That said. I'll bite. Steve, You are doing yourself...

- Wed Jul 24, 2013 4:54 pm UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

STEVE! http://forums.xkcd.com/download/file.php?id=37943 Look at this image. Let us say that S is the x,y system, S' the u,s system (We could freely relabel x' =u, y' = s) x,y are the coordinates of P in the first system. u,s are the coordinates in the other Do you understand? S(x,y) = P = S'(x- y/2...

- Wed Jul 24, 2013 1:37 pm UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

I equate point S'(x',0,0) = P = point S(x-d,0,0) in the manifold . Is that what you believe too? No. That is precisely what no one here believes. (Also, we don't believe things, we choose to notate them in given ways, and this is not how we are notating things). WE EQUATE S'(x',0,0) = P = S(x,0,0) ...

- Wed Jul 24, 2013 2:28 am UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

Schrollini wrote:steve waterman wrote:True, Keeping in mind, please, "mathematics in not subjective". So, from my

point of view,

Snerk.

Well then.

- Wed Jul 24, 2013 1:27 am UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

And in this moment, I suddenly decided addams is wonderful.

- Tue Jul 23, 2013 11:20 pm UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

No Steve, you are not a mathematician. You have displayed that time and time again. There is fucking choice in mathematics. x can be a variable, a point, a constant, a vector, an element of a group a ring or a field, it can be an arbitrary element of a topological set, a multiplication symbol, a cro...

- Tue Jul 23, 2013 9:47 pm UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

Steve. You seem to be getting the gist of things. Sort of. I am going to ask a few questions. Consider the function f(x) = x^2 f(1) = 1 = f(-1) Do you disagree? Does 1 = -1 ? No. Let f(x) = x + 3, Let g(x) = x^3 g(2) = 8 = f(5) does 2 =5 ? No. Do these seem like stupid questions? If so, then underst...

- Mon Jul 22, 2013 4:10 am UTC
- Forum: General
- Topic: Hype your ripe snipes 'n' gripes
- Replies:
**28619** - Views:
**3533242**

### Re: Pant Thread (because we need more panting)

For fuck's sake. If your video streaming set up is "optimizing video quality", what the fuck does that mean. Clearly it doesn't mean you're actually checking to see if it can stream for more than 2 seconds contiguously. Maybe you should just give me the fucking controls. I am not a snob, I...

- Sat Jul 20, 2013 5:47 pm UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

Apologies to all for double posting, but I feel this analogy deserves the attention. Steve, Let us say x is some number, not a function, not a moving thing, just a number. Let us say that 3 = x. Put x in a box Go watch a movie. Open the box Take another snapshot. You see four. You might claim x=4. Y...

- Sat Jul 20, 2013 5:38 pm UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

Steve, A coordinate system is. It does not change. If you take a snapshot of space, with no time allowed, and the coordinates changed, then that doesn't mean that there is one coordinate system and it changed, it means that you switched to A DIFFERENT COORDINATE SYSTEM In fact, let me make something...

- Sat Jul 20, 2013 4:53 pm UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

Steve, There is a distinction that needs to be made here. Time has been used in two senses in this discussion. First, we have considered time as one of the dimensions over which our coordinates run when we are trying to identify points in the manifold of interest (that is, spacetime). This is perfe...

- Sat Jul 20, 2013 4:17 pm UTC
- Forum: General
- Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
- Replies:
**908** - Views:
**172754**

### Re: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x

Steve, There is a distinction that needs to be made here. Time has been used in two senses in this discussion. First, we have considered time as one of the dimensions over which our coordinates run when we are trying to identify points in the manifold of interest (that is, spacetime). This is perfec...