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Groups > comp.lang.c > #64364 > unrolled thread
| Started by | fir <profesor.fir@gmail.com> |
|---|---|
| First post | 2015-06-28 06:15 -0700 |
| Last post | 2015-07-06 19:32 -0700 |
| Articles | 20 on this page of 56 — 16 participants |
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[meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-06-28 06:15 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-06-28 06:26 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-06-28 06:34 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-06-28 06:35 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-06-28 06:51 -0700
Re: [meta] how to attack a problem Aleksandar Kuktin <akuktin@gmail.com> - 2015-06-28 14:31 +0000
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-06-28 07:38 -0700
Re: [meta] how to attack a problem Ed Prochak <edprochak@gmail.com> - 2015-06-28 14:50 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-06-28 15:16 -0700
Re: [meta] how to attack a problem Ed Prochak <edprochak@gmail.com> - 2015-06-29 14:25 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-06-29 16:00 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-06-29 16:06 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-06-30 12:21 -0700
Re: [meta] how to attack a problem maddoxr@acm.org - 2015-07-01 07:09 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-07-01 11:01 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-07-01 11:20 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-07-01 11:33 -0700
Re: [meta] how to attack a problem Rosario19 <Ros@invalid.invalid> - 2015-07-02 08:35 +0200
Re: [meta] how to attack a problem August Karlstrom <fusionfile@gmail.com> - 2015-07-02 07:18 +0200
Re: [meta] how to attack a problem "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-07-01 23:48 -0700
Re: [meta] how to attack a problem Martin Shobe <martin.shobe@yahoo.com> - 2015-07-02 07:33 -0500
Re: [meta] how to attack a problem "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-07-02 09:44 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-07-02 09:47 -0700
Re: [meta] how to attack a problem "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-07-02 09:58 -0700
Re: [meta] how to attack a problem Martin Shobe <martin.shobe@yahoo.com> - 2015-07-02 12:33 -0500
Re: [meta] how to attack a problem "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-07-02 10:37 -0700
Re: [meta] how to attack a problem maddoxr@acm.org - 2015-07-03 06:01 -0700
Re: [meta] how to attack a problem Martin Shobe <martin.shobe@yahoo.com> - 2015-07-03 10:58 -0500
Re: [meta] how to attack a problem David Kleinecke <dkleinecke@gmail.com> - 2015-07-03 09:07 -0700
Re: [meta] how to attack a problem gwowen <gwowen@gmail.com> - 2015-07-06 05:20 -0700
Re: [meta] how to attack a problem "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-07-06 05:23 -0700
Re: [meta] how to attack a problem James Kuyper <jameskuyper@verizon.net> - 2015-07-06 08:37 -0400
Re: [meta] how to attack a problem maddoxr@acm.org - 2015-07-06 07:01 -0700
Re: [meta] how to attack a problem James Kuyper <jameskuyper@verizon.net> - 2015-07-06 10:31 -0400
Re: [meta] how to attack a problem Keith Thompson <kst-u@mib.org> - 2015-07-06 07:48 -0700
Re: [meta] how to attack a problem raltbos@xs4all.nl (Richard Bos) - 2015-07-06 19:07 +0000
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-07-06 12:32 -0700
Re: [meta] how to attack a problem Martin Shobe <martin.shobe@yahoo.com> - 2015-07-06 10:06 -0500
Re: [meta] how to attack a problem gwowen <gwowen@gmail.com> - 2015-07-06 08:49 -0700
Re: [meta] how to attack a problem luser droog <luser.droog@gmail.com> - 2015-07-06 14:03 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-07-06 14:52 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-07-08 14:05 -0700
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-07-09 01:27 -0700
Re: [meta] how to attack a problem Keith Thompson <kst-u@mib.org> - 2015-07-06 16:19 -0700
Re: [meta] how to attack a problem luser droog <luser.droog@gmail.com> - 2015-07-06 18:17 -0700
Re: [meta] how to attack a problem luser droog <luser.droog@gmail.com> - 2015-07-06 18:58 -0700
Re: [meta] how to attack a problem Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2015-07-06 21:09 -0600
Re: [meta] how to attack a problem "Charles Richmond" <numerist@aquaporin4.com> - 2015-07-07 15:14 -0500
Re: [meta] how to attack a problem Keith Thompson <kst-u@mib.org> - 2015-07-07 14:50 -0700
Re: [meta] how to attack a problem Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2015-07-07 21:20 -0600
Re: [meta] how to attack a problem gwowen <gwowen@gmail.com> - 2015-07-08 04:01 -0700
Re: [meta] how to attack a problem Aleksandar Kuktin <akuktin@gmail.com> - 2015-06-29 00:58 +0000
Re: [meta] how to attack a problem fir <profesor.fir@gmail.com> - 2015-06-29 10:31 -0700
Re: [meta] how to attack a problem Ed Prochak <edprochak@gmail.com> - 2015-06-28 14:41 -0700
Re: [meta] how to attack a problem Aleksandar Kuktin <akuktin@gmail.com> - 2015-06-29 00:57 +0000
Re: [meta] how to attack a problem luser droog <luser.droog@gmail.com> - 2015-07-06 19:32 -0700
Page 2 of 3 — ← Prev page 1 [2] 3 Next page →
| From | Martin Shobe <martin.shobe@yahoo.com> |
|---|---|
| Date | 2015-07-02 07:33 -0500 |
| Message-ID | <mn3b0r$i3t$1@dont-email.me> |
| In reply to | #64615 |
On 7/2/2015 1:48 AM, Rick C. Hodgin wrote: > August Karlstrom wrote: > > No hurry. When you understand the problem, the solution will be >> obvious. If the solution is not obvious, you do not yet understand >> the problem. > > P v. NP. > > https://en.m.wikipedia.org/wiki/P_versus_NP_problem Be careful, your attributions made it look like August Karlstrom wrote the above instead of fir. Anyway, my contribution will be Is every even number greater than 2 is the sum of two primes? Martin Shobe
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| From | "Rick C. Hodgin" <rick.c.hodgin@gmail.com> |
|---|---|
| Date | 2015-07-02 09:44 -0700 |
| Message-ID | <baf1e3fa-c468-4933-b419-1032bbf9bc5a@googlegroups.com> |
| In reply to | #64618 |
On Thursday, July 2, 2015 at 8:34:06 AM UTC-4, Martin Shobe wrote: > On 7/2/2015 1:48 AM, Rick C. Hodgin wrote: > > August Karlstrom wrote: > > > No hurry. When you understand the problem, the solution will be > >> obvious. If the solution is not obvious, you do not yet understand > >> the problem. > > > > P v. NP. > > > > https://en.m.wikipedia.org/wiki/P_versus_NP_problem > > Be careful, your attributions made it look like August Karlstrom wrote > the above instead of fir. Anyway, my contribution will be > > Is every even number greater than 2 is the sum of two primes? > > Martin Shobe Oooh! My mistake. I typed that in on my phone and I grabbed the wrong name for the quote. Sorry, Martin. And Sorry, August. Best regards, Rick C. Hodgin
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| From | fir <profesor.fir@gmail.com> |
|---|---|
| Date | 2015-07-02 09:47 -0700 |
| Message-ID | <5977d734-1497-4ded-b7e2-c1a900f61b6c@googlegroups.com> |
| In reply to | #64618 |
W dniu czwartek, 2 lipca 2015 14:34:06 UTC+2 użytkownik Martin Shobe napisał: > On 7/2/2015 1:48 AM, Rick C. Hodgin wrote: > > August Karlstrom wrote: > > > No hurry. When you understand the problem, the solution will be > >> obvious. If the solution is not obvious, you do not yet understand > >> the problem. > > > > P v. NP. > > > > https://en.m.wikipedia.org/wiki/P_versus_NP_problem > > Be careful, your attributions made it look like August Karlstrom wrote > the above instead of fir. Anyway, my contribution will be > > Is every even number greater than 2 is the sum of two primes? > > Martin Shobe i didnt wrote that (overall my topic is on something different,\ sadly its very psychological)
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| From | "Rick C. Hodgin" <rick.c.hodgin@gmail.com> |
|---|---|
| Date | 2015-07-02 09:58 -0700 |
| Message-ID | <a77ca8dc-e04a-48cf-8bc7-0c8fabea2620@googlegroups.com> |
| In reply to | #64622 |
On Thursday, July 2, 2015 at 12:47:50 PM UTC-4, fir wrote: > W dniu czwartek, 2 lipca 2015 14:34:06 UTC+2 użytkownik Martin Shobe napisał: > > On 7/2/2015 1:48 AM, Rick C. Hodgin wrote: > > > August Karlstrom wrote: > > > > No hurry. When you understand the problem, the solution will be > > >> obvious. If the solution is not obvious, you do not yet understand > > >> the problem. > > > > > > P v. NP. > > > > > > https://en.m.wikipedia.org/wiki/P_versus_NP_problem > > > > Be careful, your attributions made it look like August Karlstrom wrote > > the above instead of fir. Anyway, my contribution will be > > > > Is every even number greater than 2 is the sum of two primes? > > > > Martin Shobe > > i didnt wrote that > (overall my topic is on something different,\ > sadly its very psychological) Okay... in looking again, I see that it was Randy. Sorry, fir! :-) Best regards, Rick C. Hodgin
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| From | Martin Shobe <martin.shobe@yahoo.com> |
|---|---|
| Date | 2015-07-02 12:33 -0500 |
| Message-ID | <mn3sis$n06$1@dont-email.me> |
| In reply to | #64622 |
On 7/2/2015 11:47 AM, fir wrote: > W dniu czwartek, 2 lipca 2015 14:34:06 UTC+2 użytkownik Martin Shobe napisał: >> On 7/2/2015 1:48 AM, Rick C. Hodgin wrote: >>> August Karlstrom wrote: >>> > No hurry. When you understand the problem, the solution will be >>>> obvious. If the solution is not obvious, you do not yet understand >>>> the problem. >>> >>> P v. NP. >>> >>> https://en.m.wikipedia.org/wiki/P_versus_NP_problem >> >> Be careful, your attributions made it look like August Karlstrom wrote >> the above instead of fir. Anyway, my contribution will be >> >> Is every even number greater than 2 is the sum of two primes? >> >> Martin Shobe > > i didnt wrote that > (overall my topic is on something different,\ > sadly its very psychological) Sorry. My mistake, it was Randy. Martin Shobe
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| From | "Rick C. Hodgin" <rick.c.hodgin@gmail.com> |
|---|---|
| Date | 2015-07-02 10:37 -0700 |
| Message-ID | <93f2cf99-eb1d-45b9-880d-e3c2ccb87229@googlegroups.com> |
| In reply to | #64626 |
Martin Shobe wrote: > Sorry. My mistake, it was Randy. We sure are a sorry lot! Especially me! :-) Best regards, Rick C. Hodgin
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| From | maddoxr@acm.org |
|---|---|
| Date | 2015-07-03 06:01 -0700 |
| Message-ID | <53599f0e-8bad-4815-b514-f85fc0ea063d@googlegroups.com> |
| In reply to | #64613 |
On Thursday, July 2, 2015 at 1:19:03 AM UTC-4, August Karlstrom wrote: > On 2015-07-01 16:09, maddoxr@acm.org wrote: > > No hurry. When you understand the problem, the solution will be > > obvious. If the solution is not obvious, you do not yet understand > > the problem. > > I understand Fermat's last theorem but I can't solve it. > > > -- August Trite, and not relevant. First, Fermat's last theorem was proved by Andrew Wiles in 1995, so someone understood it better than you or I. Second, this is a discussion group on the C programming language, where we mostly deal with a very different set of problems. Third, there are many questions for which no answer exists. Such cannot, by definition, be understood well enough to be solved. Thus, in practical application to real work, I stand by my statement. Randy.
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| From | Martin Shobe <martin.shobe@yahoo.com> |
|---|---|
| Date | 2015-07-03 10:58 -0500 |
| Message-ID | <mn6bbu$jj9$1@dont-email.me> |
| In reply to | #64631 |
On 7/3/2015 8:01 AM, maddoxr@acm.org wrote: > On Thursday, July 2, 2015 at 1:19:03 AM UTC-4, August Karlstrom wrote: >> On 2015-07-01 16:09, maddoxr@acm.org wrote: >>> No hurry. When you understand the problem, the solution will be >>> obvious. If the solution is not obvious, you do not yet understand >>> the problem. >> >> I understand Fermat's last theorem but I can't solve it. >> >> >> -- August > > Trite, and not relevant. > > First, Fermat's last theorem was proved by Andrew Wiles in 1995, so someone understood it better than you or I. He understood how to prove a particular result better than you or I, but I don't see the connection between that and understanding the problem, "Is there three positive integers, a, b, and c, such that a^n+b^n = c^n for any integer value of n greater than two. The problem itself is simple, it's the solution that hard. > Third, there are many questions for which no answer exists. Such cannot, by definition, be understood well enough to be solved. That is a rather odd definition of understood. Sure, if understood, means solved, then any unsolvable problem is not understandable, but I certainly don't use understood that way. Martin Shobe
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| From | David Kleinecke <dkleinecke@gmail.com> |
|---|---|
| Date | 2015-07-03 09:07 -0700 |
| Message-ID | <6265309b-35e7-49e6-9239-3433a13809b3@googlegroups.com> |
| In reply to | #64634 |
On Friday, July 3, 2015 at 8:58:18 AM UTC-7, Martin Shobe wrote: > On 7/3/2015 8:01 AM, maddoxr@acm.org wrote: > > On Thursday, July 2, 2015 at 1:19:03 AM UTC-4, August Karlstrom wrote: > >> On 2015-07-01 16:09, maddoxr@acm.org wrote: > >>> No hurry. When you understand the problem, the solution will be > >>> obvious. If the solution is not obvious, you do not yet understand > >>> the problem. > >> > >> I understand Fermat's last theorem but I can't solve it. > >> > >> > >> -- August > > > > Trite, and not relevant. > > > > First, Fermat's last theorem was proved by Andrew Wiles in 1995, so someone understood it better than you or I. > > He understood how to prove a particular result better than you or I, but > I don't see the connection between that and understanding the problem, > "Is there three positive integers, a, b, and c, such that a^n+b^n = c^n > for any integer value of n greater than two. The problem itself is > simple, it's the solution that hard. > > > Third, there are many questions for which no answer exists. Such cannot, by definition, be understood well enough to be solved. > > That is a rather odd definition of understood. Sure, if understood, > means solved, then any unsolvable problem is not understandable, but I > certainly don't use understood that way. There are problems and there are problems. The human population of the world is growing exponentially. That cannot endure forever. Problem: what, if anything, should we do about it? That's a real world problem of the kind RM surely intended rather than the problem of proving a mathematical hypothesis. RM's rule is a good rule of thumb - but just like every similar rule - it leaks.
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| From | gwowen <gwowen@gmail.com> |
|---|---|
| Date | 2015-07-06 05:20 -0700 |
| Message-ID | <ea11c98c-7c37-4168-a2b3-b13d70254477@googlegroups.com> |
| In reply to | #64634 |
On Friday, July 3, 2015 at 4:58:18 PM UTC+1, Martin Shobe wrote: > > Third, there are many questions for which no answer exists. Such cannot, by definition, be understood well enough to be solved. > > That is a rather odd definition of understood. Sure, if understood, > means solved, then any unsolvable problem is not understandable, but I > certainly don't use understood that way. What he meant was "once you understand a problem you know how to solve it, where by 'understand' I mean 'understand sufficiently well to have solved'".
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| From | "Rick C. Hodgin" <rick.c.hodgin@gmail.com> |
|---|---|
| Date | 2015-07-06 05:23 -0700 |
| Message-ID | <59773bde-a180-45e8-8bcb-b275a4f00f8f@googlegroups.com> |
| In reply to | #64740 |
On Monday, July 6, 2015 at 8:20:16 AM UTC-4, gwowen wrote:
> [snip]
With my dyslexia, when I read "gwowen," my mind always reads it as
Gowron. :-) It takes me a couple glances to get it right.
http://en.memory-alpha.wikia.com/wiki/Gowron
Best regards,
Rick C. Hodgin
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| From | James Kuyper <jameskuyper@verizon.net> |
|---|---|
| Date | 2015-07-06 08:37 -0400 |
| Message-ID | <mndsnn$qim$1@dont-email.me> |
| In reply to | #64740 |
On 07/06/2015 08:20 AM, gwowen wrote: > On Friday, July 3, 2015 at 4:58:18 PM UTC+1, Martin Shobe wrote: >>> Third, there are many questions for which no answer exists. Such cannot, by definition, be understood well enough to be solved. >> >> That is a rather odd definition of understood. Sure, if understood, >> means solved, then any unsolvable problem is not understandable, but I >> certainly don't use understood that way. > > What he meant was "once you understand a problem you know how to solve it, where by 'understand' I mean 'understand sufficiently well to have solved'". It's just nonsense - it's perfectly feasible to understand a problem perfectly, without having any idea how to solve it. What he really means is "When you understand how to solve the problem, the solution will be obvious. If the solution is not obvious, the you do not yet understand how to solve the problem." But wording it that way would make the tautologous nature of his assertion too obvious. So he replaces "how to solve the problem" with simply "the problem", it ceases to be a tautology, and simultaneously becomes nonsense. -- James Kuyper
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| From | maddoxr@acm.org |
|---|---|
| Date | 2015-07-06 07:01 -0700 |
| Message-ID | <fc3c0c69-c8bd-4880-b9f6-d2d352d94fff@googlegroups.com> |
| In reply to | #64742 |
On Monday, July 6, 2015 at 8:37:40 AM UTC-4, James Kuyper wrote: > On 07/06/2015 08:20 AM, gwowen wrote: > > On Friday, July 3, 2015 at 4:58:18 PM UTC+1, Martin Shobe wrote: > >>> Third, there are many questions for which no answer exists. Such cannot, by definition, be understood well enough to be solved. > >> > >> That is a rather odd definition of understood. Sure, if understood, > >> means solved, then any unsolvable problem is not understandable, but I > >> certainly don't use understood that way. > > > > What he meant was "once you understand a problem you know how to solve it, where by 'understand' I mean 'understand sufficiently well to have solved'". > > It's just nonsense - it's perfectly feasible to understand a problem > perfectly, without having any idea how to solve it. What he really means > is "When you understand how to solve the problem, the solution will be > obvious. If the solution is not obvious, the you do not yet understand > how to solve the problem." But wording it that way would make the > tautologous nature of his assertion too obvious. So he replaces "how to > solve the problem" with simply "the problem", it ceases to be a > tautology, and simultaneously becomes nonsense. > -- > James Kuyper Actually, no. What I meant was that the problem and the solution are opposite sides of the same coin, the white and black of the yin and yang symbol, a single whole that we only perceive as separate parts until we see the unity. Then we understand, and both the solution and the problem are obvious. Randy.
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| From | James Kuyper <jameskuyper@verizon.net> |
|---|---|
| Date | 2015-07-06 10:31 -0400 |
| Message-ID | <mne3da$mb7$1@dont-email.me> |
| In reply to | #64749 |
On 07/06/2015 10:01 AM, maddoxr@acm.org wrote: > On Monday, July 6, 2015 at 8:37:40 AM UTC-4, James Kuyper wrote: >> On 07/06/2015 08:20 AM, gwowen wrote: >>> On Friday, July 3, 2015 at 4:58:18 PM UTC+1, Martin Shobe wrote: >>>>> Third, there are many questions for which no answer exists. Such cannot, by definition, be understood well enough to be solved. >>>> >>>> That is a rather odd definition of understood. Sure, if understood, >>>> means solved, then any unsolvable problem is not understandable, but I >>>> certainly don't use understood that way. >>> >>> What he meant was "once you understand a problem you know how to solve it, where by 'understand' I mean 'understand sufficiently well to have solved'". >> >> It's just nonsense - it's perfectly feasible to understand a problem >> perfectly, without having any idea how to solve it. What he really means >> is "When you understand how to solve the problem, the solution will be >> obvious. If the solution is not obvious, the you do not yet understand >> how to solve the problem." But wording it that way would make the >> tautologous nature of his assertion too obvious. So he replaces "how to >> solve the problem" with simply "the problem", it ceases to be a >> tautology, and simultaneously becomes nonsense. ... > Actually, no. What I meant was that the problem and the solution are opposite sides of the same coin, the white and black of the yin and yang symbol, a single whole that we only perceive as separate parts until we see the unity. Then we understand, and both the solution and the problem are obvious. You may believe that mystical nonsense - it's still nonsense. That's because, unlike the case with the yin/yang symbol, the supposed complementarity isn't constructive. A perfect understanding of the problem is often insufficient to construct the supposedly complementary solution to it - which means I would not call it complementary. -- James Kuyper
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| From | Keith Thompson <kst-u@mib.org> |
|---|---|
| Date | 2015-07-06 07:48 -0700 |
| Message-ID | <ln4mlhwdda.fsf@kst-u.example.com> |
| In reply to | #64749 |
maddoxr@acm.org writes:
[...]
> Actually, no. What I meant was that the problem and the solution are
> opposite sides of the same coin, the white and black of the yin and
> yang symbol, a single whole that we only perceive as separate parts
> until we see the unity. Then we understand, and both the solution and
> the problem are obvious.
There are problems for which that's true, where once you understand the
problem clearly enough, the solution is reasonably obvious.
There are also problems for which that is definitely *not* true, where
the problem can be understood from a simple and straightforward
description, but the solution is *extremely* complex.
Examples are Fermat's Last Theorem and the Four Color Map Theorem, both
of which have simple statements but took literally centuries of effort
to solve.
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"
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| From | raltbos@xs4all.nl (Richard Bos) |
|---|---|
| Date | 2015-07-06 19:07 +0000 |
| Message-ID | <559ad1b0.14923343@news.xs4all.nl> |
| In reply to | #64757 |
Keith Thompson <kst-u@mib.org> wrote: > maddoxr@acm.org writes: > [...] > > Actually, no. What I meant was that the problem and the solution are > > opposite sides of the same coin, the white and black of the yin and > > yang symbol, a single whole that we only perceive as separate parts > > until we see the unity. Then we understand, and both the solution and > > the problem are obvious. > > There are problems for which that's true, where once you understand the > problem clearly enough, the solution is reasonably obvious. > > There are also problems for which that is definitely *not* true, where > the problem can be understood from a simple and straightforward > description, but the solution is *extremely* complex. There are even problems for which it's true that if you understand it well enough, it becomes clear that there _isn't_ a solution. The most famous of these in computing is the Halting Problem. Richard
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| From | fir <profesor.fir@gmail.com> |
|---|---|
| Date | 2015-07-06 12:32 -0700 |
| Message-ID | <b957a0fd-cf0c-4654-951c-ee6bc93e5db3@googlegroups.com> |
| In reply to | #64790 |
W dniu poniedziałek, 6 lipca 2015 21:07:23 UTC+2 użytkownik Richard Bos napisał: > Keith Thompson <kst-u@mib.org> wrote: > > > maddoxr@acm.org writes: > > [...] > > > Actually, no. What I meant was that the problem and the solution are > > > opposite sides of the same coin, the white and black of the yin and > > > yang symbol, a single whole that we only perceive as separate parts > > > until we see the unity. Then we understand, and both the solution and > > > the problem are obvious. > > > > There are problems for which that's true, where once you understand the > > problem clearly enough, the solution is reasonably obvious. > > > > There are also problems for which that is definitely *not* true, where > > the problem can be understood from a simple and straightforward > > description, but the solution is *extremely* complex. > > There are even problems for which it's true that if you understand it > well enough, it becomes clear that there _isn't_ a solution. The most > famous of these in computing is the Halting Problem. > anyway well understending of the problem leads closer to solution - and i was asking indeed how to attack understanding (as there are many ways to it).. afterall maybe i was to pesymistyc/hysteric maybe just patience is a sufficient way to go (m not sure - this is one of the main virtual thesis that could be applied here in this topic: do patience (+slight determinantion but you could optymisticaly call it derivative of patience)) suffice or no... m not sure as to answer to this
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| From | Martin Shobe <martin.shobe@yahoo.com> |
|---|---|
| Date | 2015-07-06 10:06 -0500 |
| Message-ID | <mne5eb$rke$1@dont-email.me> |
| In reply to | #64749 |
On 7/6/2015 9:01 AM, maddoxr@acm.org wrote: > On Monday, July 6, 2015 at 8:37:40 AM UTC-4, James Kuyper wrote: >> On 07/06/2015 08:20 AM, gwowen wrote: >>> On Friday, July 3, 2015 at 4:58:18 PM UTC+1, Martin Shobe wrote: >>>>> Third, there are many questions for which no answer exists. Such cannot, by definition, be understood well enough to be solved. >>>> >>>> That is a rather odd definition of understood. Sure, if understood, >>>> means solved, then any unsolvable problem is not understandable, but I >>>> certainly don't use understood that way. >>> >>> What he meant was "once you understand a problem you know how to solve it, where by 'understand' I mean 'understand sufficiently well to have solved'". >> >> It's just nonsense - it's perfectly feasible to understand a problem >> perfectly, without having any idea how to solve it. What he really means >> is "When you understand how to solve the problem, the solution will be >> obvious. If the solution is not obvious, the you do not yet understand >> how to solve the problem." But wording it that way would make the >> tautologous nature of his assertion too obvious. So he replaces "how to >> solve the problem" with simply "the problem", it ceases to be a >> tautology, and simultaneously becomes nonsense. > Actually, no. What I meant was that the problem and the solution are opposite sides of the same coin, the white and black of the yin and yang symbol, a single whole that we only perceive as separate parts until we see the unity. Then we understand, and both the solution and the problem are obvious. And how do problems that provably have no solution fit into this? Does this mean that they can't be understood? If so, how did we prove that it doesn't have a solution if we didn't understand the problem? Martin Shobe
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| From | gwowen <gwowen@gmail.com> |
|---|---|
| Date | 2015-07-06 08:49 -0700 |
| Message-ID | <fe08e36e-f90a-48c4-8109-318b5c9f355f@googlegroups.com> |
| In reply to | #64742 |
On Monday, July 6, 2015 at 1:37:40 PM UTC+1, James Kuyper wrote: > On 07/06/2015 08:20 AM, gwowen wrote: > > On Friday, July 3, 2015 at 4:58:18 PM UTC+1, Martin Shobe wrote: > >>> Third, there are many questions for which no answer exists. Such cannot, by definition, be understood well enough to be solved. > >> > >> That is a rather odd definition of understood. Sure, if understood, > >> means solved, then any unsolvable problem is not understandable, but I > >> certainly don't use understood that way. > > > > What he meant was "once you understand a problem you know how to solve it, where by 'understand' I mean 'understand sufficiently well to have solved'". > > It's just nonsense - Yes. > it's perfectly feasible to understand a problem > perfectly, without having any idea how to solve it. .... Yes > So he replaces "how to solve the problem" with simply "the problem", > it ceases to be a tautology, and simultaneously becomes nonsense. Yes
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| From | luser droog <luser.droog@gmail.com> |
|---|---|
| Date | 2015-07-06 14:03 -0700 |
| Message-ID | <163e9d6c-0ac8-4d21-9621-d740d3037d57@googlegroups.com> |
| In reply to | #64584 |
On Wednesday, July 1, 2015 at 9:09:38 AM UTC-5, mad...@acm.org wrote: > On Tuesday, June 30, 2015 at 3:21:45 PM UTC-4, fir wrote: > > PS I may add much weaker question but boarding slightly on this perfect methodology topic" > > > > is it better to attack a problems > > - in a bit hurry > > - in a bit lazy mode > > - in high hurry and tense > > - in big lazy mode > > > > ? > > > > imo when you work in hurry you get tired, > > so being a little slow may help you conservate (preserve) the energy - so this could be better > > - otherwise it may seem thoygh thet being a little hury could rise your level of focus and > > tempo (though i personally do not quite belive in this, but maybe, im not sure) > > "Measure twice, cut once." > > No hurry. When you understand the problem, the solution will be obvious. If the solution is not obvious, you do not yet understand the problem. > > Randy. While the wording has attracted some disagreement, this is IMO a very valuable notion. Perhaps if we replace 'problem' with 'problem statement', that might lead us in a useful direction. The seeds of the answer are embedded in the question. -- There are no answers -- only choices. -Dr. Gibarian
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