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Re: hehe, Infinity | ||
Posted By: Forrest of B.org | Date: 12/15/06 1:15 p.m. | |
In Response To: Re: hehe, Infinity (treellama) : You can count rational numbers, the same as you can count natural numbers,
Right, I got that, but that's the proof that I didn't find convincing. Why does both being countable mean that they have the same cardinal value? It seems like there should be exponentially more rational numbers than integers... that the cardinality of set of rationals should be the square of the cardinality of set of integers. Given there are n integers, there should be n rational numbers with any given integer as it's numerator or denominator; or in other words, there should be as many rationals on the number line between any two integers, as there are integers. The countability proof was shown to me graphically, as a grid of the natural numbers over the natural numbers, and they counted diagonally from 1/1 on down like you did. But it seems that, since a 3x3 grid has 3^2=9 boxes, and a 4x4 grid had 4^2=16 boxes, and so on, an aleph-null-by-aleph-null grid should have (aleph-null)^2 boxes. For that matter, shouldn't the set of natural numbers be smaller than the set set of integers? And shouldn't the set of prime numbers be smaller than that? I mean, they're all going to be "infinity" but we're already talking different values of "infinity" so what's the problem there? I'd think that aleph-null would be the cardinality of the set of natural numbers, or maybe the primes, and everything else would be based around that. I guess I just don't see why both being countable automatically makes two sets have the same cardinality. Is there only one countable cardinality? I gather the answer is supposedly "yes", but why? Is there only one uncountable cardinality? I gather the answer is supposedly "no", but why not? Maybe I'm just not understanding something about the concept of countability.
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Replies: |
The Garden of Forking Paths | Document | 11/29/06 8:50 p.m. | |
Re: The Garden of Forking Paths | Forrest of B.org | 11/29/06 10:11 p.m. | |
*sniff* Duality *sniff *NM* | treellama | 11/30/06 2:51 a.m. | |
That's not fair. | RyokoTK | 11/30/06 5:26 a.m. | |
Re: That's not fair. | McNutcase | 11/30/06 5:40 a.m. | |
Re: That's not fair. | RyokoTK | 11/30/06 8:51 a.m. | |
Re: That's not fair. | McNutcase | 11/30/06 9:25 a.m. | |
Re: That's not fair. | RyokoTK | 11/30/06 9:59 a.m. | |
Re: That's not fair. | D-M.A. | 11/30/06 10:05 a.m. | |
Re: That's not fair. | RyokoTK | 11/30/06 10:22 a.m. | |
Ahaa, I see what you mean now, point taken. *NM* | D-M.A. | 11/30/06 10:33 a.m. | |
define "well" | MrHen | 11/30/06 10:24 a.m. | |
Re: define "well" | RyokoTK | 11/30/06 11:31 a.m. | |
Re: define "well" | Aaron Sikes | 11/30/06 12:19 p.m. | |
Re: define "well" | Forrest of B.org | 11/30/06 1:26 p.m. | |
Re: define "well" | Aaron Sikes | 12/1/06 6:01 a.m. | |
Mmm... House of Leaves | MrHen | 11/30/06 8:00 a.m. | |
Re: The Garden of Forking Paths | Vid Boi | 11/30/06 8:13 a.m. | |
Re: The Garden of Forking Paths | sdwoodchuck | 11/30/06 12:39 p.m. | |
So, what was your conclusion? *NM* | Frungi | 11/30/06 3:57 p.m. | |
Re: So, what was your conclusion? | sdwoodchuck | 11/30/06 6:18 p.m. | |
in your theory, the dreams... | MrHen | 12/1/06 4:44 a.m. | |
Re: in your theory, the dreams... | thermoplyae | 12/1/06 6:42 a.m. | |
Re: So, what was your conclusion? | Frungi | 12/4/06 6:31 p.m. | |
Re: So, what was your conclusion? | Forrest of B.org | 12/4/06 9:07 p.m. | |
Time Travel and the Psychology of Gods | Forrest of B.org | 12/4/06 9:25 p.m. | |
Re: Time Travel and the Psychology of Gods | Frungi | 12/5/06 8:46 a.m. | |
Re: Time Travel and the Psychology of Gods | Forrest of B.org | 12/5/06 4:29 p.m. | |
heck, I would buy 'em | MrHen | 12/5/06 6:39 p.m. | |
Philosophy anyone? | Icarus | 12/6/06 8:29 a.m. | |
Re: Philosophy anyone? | Forrest of B.org | 12/6/06 10:46 a.m. | |
Re: The Garden of Forking Paths *LINK* | Hamish Sinclair | 12/2/06 5:06 a.m. | |
Re: The Garden of Forking Paths | Document | 12/2/06 6:17 p.m. | |
Re: The Garden of Forking Paths | Document | 12/4/06 7:03 p.m. | |
Official Bungie Canon? | Shoeless | 12/7/06 7:00 a.m. | |
Re: Official Bungie Canon? | Bob-B-Q | 12/7/06 10:14 a.m. | |
Define "all" | MrHen | 12/7/06 10:20 a.m. | |
Re: Define "all" | Document | 12/7/06 4:20 p.m. | |
Re: Define "all" | Document | 12/7/06 4:21 p.m. | |
Re: Official Bungie Canon? | Chris Biberstein | 12/11/06 10:28 a.m. | |
Re: Official Bungie Canon? | Shoeless | 12/11/06 12:00 p.m. | |
Re: Official Bungie Canon? | Forrest of B.org | 12/11/06 12:03 p.m. | |
Re: Official Bungie Canon? | MrHen | 12/11/06 1:45 p.m. | |
Re: Official Bungie Canon? *LINK* | Frungi | 12/11/06 3:22 p.m. | |
uh, thanks... | MrHen | 12/11/06 6:01 p.m. | |
Re: Official Bungie Canon? | Forrest of B.org | 12/11/06 9:44 p.m. | |
I like being confused... | MrHen | 12/12/06 5:13 a.m. | |
Re: I like being confused... | Forrest of B.org | 12/12/06 3:53 p.m. | |
Re: I like being confused... | Frungi | 12/12/06 5:51 p.m. | |
Re: I like being confused... | Forrest of B.org | 12/12/06 9:42 p.m. | |
timelines and their glory | MrHen | 12/13/06 5:14 a.m. | |
Re: timelines and their glory | Forrest of B.org | 12/13/06 8:05 a.m. | |
Mmm... trippy... | MrHen | 12/13/06 8:20 a.m. | |
Re: timelines and their glory | Frungi | 12/13/06 1:43 p.m. | |
Re: Official Bungie Canon? | Chris Biberstein | 12/12/06 12:37 p.m. | |
Re: Official Bungie Canon? | Forrest of B.org | 12/12/06 4:02 p.m. | |
Re: Official Bungie Canon? | Chris Biberstein | 12/12/06 4:43 p.m. | |
Re: Official Bungie Canon? | Forrest of B.org | 12/12/06 9:52 p.m. | |
Re: Official Bungie Canon? | Chris Biberstein | 12/13/06 4:17 p.m. | |
Re: Official Bungie Canon? | Forrest of B.org | 12/13/06 6:06 p.m. | |
Re: Official Bungie Canon? | Chris Biberstein | 12/16/06 5:42 p.m. | |
what? why? | MrHen | 12/16/06 5:47 p.m. | |
Re: Official Bungie Canon? | kyjel | 12/16/06 6:40 p.m. | |
Re: Official Bungie Canon? | Shoeless | 12/17/06 4:13 p.m. | |
Re: Official Bungie Canon? | Frungi | 12/18/06 5:09 p.m. | |
Re: Official Bungie Canon? | Chris Biberstein | 12/18/06 8:47 p.m. | |
Re: Official Bungie Canon? | Frungi | 12/18/06 9:22 p.m. | |
Re: Official Bungie Canon? | Chris Biberstein | 12/22/06 9:58 a.m. | |
questions and answers | MrHen | 12/22/06 12:44 p.m. | |
Re: Official Bungie Canon? | Shoeless | 12/22/06 1:24 p.m. | |
Re: Official Bungie Canon? | Shoeless | 12/18/06 10:21 p.m. | |
rabbit trail, sorry... | MrHen | 12/13/06 5:23 a.m. | |
Re: rabbit trail, sorry... | Chris Biberstein | 12/13/06 4:29 p.m. | |
and the problem was... where? | MrHen | 12/13/06 7:06 p.m. | |
Re: and the problem was... where? | Forrest of B.org | 12/13/06 9:13 p.m. | |
ah, my bad. I understand. :) *NM* | MrHen | 12/14/06 4:54 a.m. | |
Re: ah, my bad. I understand. :) | Forrest of B.org | 12/14/06 1:22 p.m. | |
I am the same way. ;) | MrHen | 12/15/06 5:18 a.m. | |
Re: I am the same way. ;) | Forrest of B.org | 12/15/06 7:27 a.m. | |
Branching | MrHen | 12/15/06 9:46 a.m. | |
Re: Branching | Forrest of B.org | 12/15/06 11:04 a.m. | |
Actually, I think I did understand. | MrHen | 12/15/06 4:32 p.m. | |
Re: Actually, I think I did understand. | Forrest of B.org | 12/17/06 11:55 a.m. | |
Oh, okay, then we do disagree. | MrHen | 12/17/06 6:50 p.m. | |
Re: Oh, okay, then we do disagree. | Forrest of B.org | 12/17/06 10:08 p.m. | |
so where do you get hyper-time? | MrHen | 12/18/06 5:13 a.m. | |
Re: so where do you get hyper-time? | Forrest of B.org | 12/18/06 8:20 a.m. | |
whoops... no... that is not what I meant. | MrHen | 12/18/06 9:49 a.m. | |
Re: whoops... no... that is not what I meant. | Forrest of B.org | 12/18/06 1:58 p.m. | |
right, yeah, that is the identity problem | MrHen | 12/18/06 4:41 p.m. | |
Re: right, yeah, that is the identity problem | Forrest of B.org | 12/18/06 9:55 p.m. | |
ohhh... | MrHen | 12/19/06 5:44 a.m. | |
Re: ohhh... | Forrest of B.org | 12/19/06 9:20 a.m. | |
back to the math ;) | MrHen | 12/19/06 11:07 a.m. | |
Re: back to the math ;) | Forrest of B.org | 12/19/06 1:36 p.m. | |
wait, so my model is too... real? ;) | MrHen | 12/22/06 1:57 p.m. | |
Sort of. | Forrest of B.org | 12/22/06 3:22 p.m. | |
and the light turns on... | MrHen | 1/7/07 4:41 p.m. | |
Re: and the light turns on... | Forrest of B.org | 1/8/07 8:12 p.m. | |
Re: Official Bungie Canon? | Shoeless | 12/13/06 8:11 a.m. | |
Re: Official Bungie Canon? | Chris Biberstein | 12/13/06 4:34 p.m. | |
Re: Official Bungie Canon? | Shoeless | 12/14/06 8:01 a.m. | |
Re: Official Bungie Canon? | Frungi | 12/15/06 8:02 a.m. | |
Re: Official Bungie Canon? | Forrest of B.org | 12/15/06 8:51 a.m. | |
Re: Official Bungie Canon? | Frungi | 12/15/06 9:22 a.m. | |
hehe, Infinity | MrHen | 12/15/06 9:51 a.m. | |
Re: hehe, Infinity | Forrest of B.org | 12/15/06 11:16 a.m. | |
Re: hehe, Infinity | treellama | 12/15/06 12:18 p.m. | |
Re: hehe, Infinity | Forrest of B.org | 12/15/06 1:15 p.m. | |
Re: hehe, Infinity | treellama | 12/15/06 2:09 p.m. | |
Re: hehe, Infinity | Forrest of B.org | 12/15/06 3:15 p.m. | |
Re: hehe, Infinity | treellama | 12/15/06 4:12 p.m. | |
Re: hehe, Infinity | Frungi | 12/15/06 6:34 p.m. | |
Re: hehe, Infinity | treellama | 12/16/06 3:38 a.m. | |
So... do I have this right? | MrHen | 12/16/06 6:35 a.m. | |
Re: So... do I have this right? | treellama | 12/16/06 11:25 a.m. | |
Re: hehe, Infinity | treellama | 12/15/06 2:21 p.m. | |
Re: Official Bungie Canon? | treellama | 12/15/06 9:55 a.m. | |
Re: Official Bungie Canon? | McNutcase | 12/15/06 11:12 a.m. | |
Re: Official Bungie Canon? | Forrest of B.org | 12/15/06 1:20 p.m. | |
Re: Official Bungie Canon? | McNutcase | 12/15/06 9:32 a.m. | |
Re: Official Bungie Canon? | MrHen | 12/15/06 9:49 a.m. | |
Re: Official Bungie Canon? | treellama | 12/15/06 9:56 a.m. | |
Re: Official Bungie Canon? | McNutcase | 12/15/06 11:09 a.m. | |
Re: Official Bungie Canon? | Forrest of B.org | 12/15/06 1:34 p.m. | |
Re: Official Bungie Canon? | Forrest of B.org | 12/15/06 1:39 p.m. | |
Re: Official Bungie Canon? | ukimalefu | 12/15/06 6:29 p.m. | |
Re: Official Bungie Canon? | McNutcase | 12/15/06 10:23 p.m. | |
awesome, thanks! *NM* | MrHen | 12/16/06 6:49 a.m. | |
Re: Official Bungie Canon? | Chris Biberstein | 12/16/06 5:51 p.m. | |
Re: Official Bungie Canon? | kyjel | 12/16/06 7:08 p.m. | |
Re: Official Bungie Canon? | Chris Biberstein | 12/18/06 8:36 p.m. | |
Re: Official Bungie Canon? | Frungi | 12/18/06 9:48 p.m. | |
Re: Official Bungie Canon? | Chris Biberstein | 12/22/06 10:00 a.m. | |
Re: Official Bungie Canon? | Forrest of B.org | 12/22/06 10:19 a.m. | |
what he said | MrHen | 12/22/06 12:38 p.m. | |
Re: Official Bungie Canon? | Shoeless | 12/18/06 10:23 p.m. | |
*sigh* | MrHen | 12/17/06 5:08 a.m. | |
Re: Official Bungie Canon? | Frungi | 12/11/06 3:35 p.m. | |
Re: Official Bungie Canon? | Chris Biberstein | 12/12/06 12:23 p.m. | |
Re: Official Bungie Canon? | Shoeless | 12/13/06 7:56 a.m. | |
Re: Official Bungie Canon? | Forrest of B.org | 12/13/06 8:32 a.m. | |
another example (albeit overused) | MrHen | 12/13/06 8:57 a.m. | |
Re: The Garden of Forking Paths *LINK* | irons | 2/23/18 1:11 a.m. | |
LOKE *NM* | W'rkncacnter | 2/23/18 4:06 p.m. | |
Re: LOKE *NM* *LINK* | irons | 2/23/18 4:14 p.m. | |
LOKE *NM* *NM* *NM* *NM* *NM* *LINK* | W'rkncacnter | 2/23/18 11:09 p.m. | |
Re: LOKE *NM* *LINK* | irons | 2/24/18 3:31 a.m. |
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