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Re: hehe, Infinity | ||
Posted By: Forrest of B.org | Date: 12/15/06 3:15 p.m. | |
In Response To: Re: hehe, Infinity (treellama) : You would think that, but we're mapping one natural number to one rational
: Because if you can order and count the members of an infinite set, you can
I guess my problem with accepting this is that it seems like, for any amount of rational numbers, by the time you've counted them all, you've counted to a natural number higher than any thus far used in any of those rationals. E.g. if you count all rationals constructed of only 1 and 2: 1: 1/1
You now have two new natural numbers, 3 and 4, that could be used to construct a bunch more rationals (namely 1/3, 2/3, 3/3, 4/3, 3/1, 3/2, 3/4, 1/4, 2/4, 4/4, 4/1, and 4/2, in no particular order). So then by the time you've counted all them, you've got natural numbers up to 16, so that's 12 more natural numbers to construct rational numbers out of, after which point you'll have counted up to 256, and so on. So by the time you've finished counting the rational numbers that can be constructed out of the complete set of natural numbers, you must have counted to a number higher than any natural number. Which, now that I say it, sounds like a contradiction, which should mean that you can't ever count that high. Which of course you practically can't since it would take forever to do so no matter how fast you could count, but then that makes me ponder, what exactly is meant by "countable" if not in the hypothetical "...given that we had infinite time to work with" sense, in which sense nothing but the natural numbers themselves seem countable? Just that they can be arranged into an ordered sequence, so that you would know how to even proceed in the incompletable task of trying to count them? But then I don't see how that's supposed to prove that all such countable sets have the same cardinality. Mind you, I'm not asking you, Mr. Music Major, to answer all these things. Just kind of mumbling my confusions out loud. Though if you (or any one else) have answers, please, let me know. Postscript: a picture just popped into my head of two curves, both of which hit an asymptote at the same x-value, but one of which increases much more quickly; so that at x=1, they have only slightly different y values, and x=2, they have bigger differences in y values, and x=3 they have vastly different y values, and so on... but both reach infinity at, say, x=7. Is that even possible? Is that something like what's happening here; even though the cardinality of a subset of rationals is exponentially greater than the cardinality of the subset of naturals from which they're constructed, somehow both sets reach infinity "at the same time"?
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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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