Forum: Lounge
2022-07-05, 03:09
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Replies: 1,219
Views: 142,290
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Forum: Soap Box
2022-07-05, 03:03
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Replies: 974
Views: 93,755
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Forum: chalsall
2022-07-03, 14:38
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Replies: 17
Views: 422
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Forum: chalsall
2022-07-02, 16:23
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Replies: 17
Views: 422
When I was in graduate school, an unusual...
When I was in graduate school, an unusual mathematics graduate student was admitted to the program.
He had a slight speech difficulty, and was very poorly socialized.
He had dyslexia. As a...
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Forum: chalsall
2022-07-02, 16:07
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Replies: 17
Views: 422
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Forum: chalsall
2022-07-01, 03:29
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Replies: 17
Views: 422
I'm not sure about "lucid," but vivid, sure. ...
I'm not sure about "lucid," but vivid, sure. Oftentimes dreams, recollected after awakening, make absolutely no logical sense, so even if vivid, are not "lucid."
If you haven't already done, read...
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Forum: Soap Box
2022-06-30, 12:11
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Replies: 158
Views: 30,170
Depends of what you mean by "local."
You...
Depends of what you mean by "local."
You might want to look up the Drought Monitor map, updated every Thursday. Most of the western US is in drought, with about 20% in either "extreme" or...
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Forum: Soap Box
2022-06-30, 03:02
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Replies: 158
Views: 30,170
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Forum: Charles Kusniec
2022-06-28, 03:01
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Replies: 18
Views: 514
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Forum: Soap Box
2022-06-28, 02:50
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Replies: 161
Views: 12,438
I previously commented on overturning Loving v...
I previously commented on overturning Loving v Virginia and Brown v Board of Education in this post (https://www.mersenneforum.org/showpost.php?p=605282&postcount=130).
I also commented on Brown...
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Forum: Charles Kusniec
2022-06-27, 02:46
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Replies: 18
Views: 514
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Forum: Miscellaneous Math
2022-06-27, 02:20
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Replies: 32
Views: 829
If by "mod 17" you mean, "an element of the...
If by "mod 17" you mean, "an element of the residue ring of the integers Z mod 17Z," the terms "real" and "imaginary" are meaningless. I note that, mod 17, 4^2 +1 == 13^2 + 1 == 0 so 4 and 13 are...
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Forum: Miscellaneous Math
2022-06-21, 18:58
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Replies: 32
Views: 829
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Forum: FactorDB
2022-06-16, 18:59
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Replies: 561
Views: 105,983
Unless your From: header was itself an invalid...
Unless your From: header was itself an invalid address.
A technique quite often used by spammers.[/QUOTE]That would make attributing not having gotten a response to the recipient's address not...
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Forum: FactorDB
2022-06-15, 18:46
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Replies: 561
Views: 105,983
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Forum: storm5510
2022-06-14, 03:21
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Replies: 29
Views: 681
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Forum: storm5510
2022-06-13, 20:12
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Replies: 29
Views: 681
No. Burning a gallom of ethanol produces less...
No. Burning a gallom of ethanol produces less energy than burning a gallon of gasoline. Only about 2/3 the energy IIRC. So the more ethanol in the mixture, the lower your mileage will be.
The...
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Forum: Soap Box
2022-06-12, 13:52
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Replies: 37
Views: 1,219
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Forum: storm5510
2022-06-12, 13:19
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Replies: 29
Views: 681
One factor affecting the price of gas or diesel...
One factor affecting the price of gas or diesel is the price of crude oil. During the OPEC-Russia oil price war of 2020 (which was also during the COVID pandemic), Brent crude dropped below $20 per...
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Forum: Homework Help
2022-06-10, 14:07
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Replies: 24
Views: 1,236
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Forum: Factoring
2022-06-10, 13:45
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Replies: 61
Views: 4,444
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Forum: Lounge
2022-06-10, 12:19
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Replies: 379
Views: 47,371
June 10
(See this post...
June 10
(See this post (https://www.mersenneforum.org/showpost.php?p=598495&postcount=330) and the discussion which ensued in subsequent posts for more on the first two items.)
1942 Destruction...
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Forum: Miscellaneous Math
2022-06-10, 11:55
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Replies: 8
Views: 464
The following may be pertinent:
Jon...
The following may be pertinent:
Jon Grantham, There are infinitely many Perrin pseudoprimes, J. Number Theory 130 (2010) 1117-1128
[$]\text{Theorem 1.1. Let }f (x)\;\in\;\mathbb{Z}[x]\text{ be...
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Forum: Lounge
2022-06-09, 13:12
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Replies: 379
Views: 47,371
June 9
68 AD Roman Emperor Nero (15 Dec 37 -...
June 9
68 AD Roman Emperor Nero (15 Dec 37 - 09 June 68), Lucius Domitius Ahenobarbus before becoming Emperor, then Nero Claudius Caesar Augustus Germanicus, "commits suicide" at age 30 after the...
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Forum: Number Theory Discussion Group
2022-06-08, 16:10
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Replies: 18
Views: 1,885
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