hardmath

Knoxville, TN

uclue.com

Age: 61

Enjoys programming in Prolog.

Richard O'Keefe: "Prolog is an efficient programming language because it is a very stupid theorem prover."

When I cross the street, I look both ways: up and dn.

1h
answered Help me to solve this matrix determinant problem, please.
1h
revised Assigning tables for Speed Networking session
added link to speed networking article, tweaked the wording for consistency
2h
revised Requests for Reopen & Undeletion Votes, etc. (volume 01/2015 - ) [current version]
updated the status upon reclosure
12h
answered Is there a term for something equally distributed around zero?
12h
comment Which prime gaps are known to exist
Such occurrences would be implied by the Prime k-tuples conjecture of Hardy and Littlewood, but of course what you ask about is a very simple instance of that.
12h
comment Is there a term for something equally distributed around zero?
Saying the distribution is "symmetric" about 0 is probably the best you can do with one word. This implies that 0 is the median, but it is a stronger condition than merely requiring 0 to be the median.
12h
comment $T(n) = 2T\left(\frac{\log n}{2}\right)+ \theta(n)$
What is meant by "reduced to" in your question?
22h
comment Requests for Reopen & Undeletion Votes, etc. (volume 01/2015 - ) [current version]
@NajibIdrissi: The fact that a valid solution was posted is relevant to the issue of whether "the practical concerns will not be taken into account", as quid put it. That was my reason for calling attention to it. Your dictum "This is what context means" does not connect me with your insight. Perhaps you and/or quid would be kind enough to explain it to me in chat?
22h
comment Requests for Reopen & Undeletion Votes, etc. (volume 01/2015 - ) [current version]
@quid: You are in a better position than I to present this complaint. Other Readers will have to judge the stated context as clear or "pseudo-application" for themselves. I have at times helped non-mathematically inclined folks tasked with schedules of dinner parties or sports tournaments of a similar nature, and did not suspect the honesty of their requests.
23h
comment Requests for Reopen & Undeletion Votes, etc. (volume 01/2015 - ) [current version]
@quid: I don't follow your complaint. We often use "off-topic" to exclude questions which lack context or motivation. Here a clear context is described, and a mathematically justified solution was given that meets all stated restrictions.
23h
comment What are some elementary results (number theory) using theorems that went long-unproven?
The phrase "elementary number theory proofs" often means something other than proofs of number theory results that are easy to follow. Historically some important results in number theory were proven using complex analysis, and methods of proof that did not entail such excursions outside the properties of integer arithmetic became touted as "elementary" (even if they might be fairly involved, c.f. elementary proofs of the Prime Number Thm..
23h
answered Requests for Reopen & Undeletion Votes, etc. (volume 01/2015 - ) [current version]
1d
comment What is a predicate exactly in predicate logic?
In propositional logic variables represent propositions as the "atom" of expression. Statements are built up from propositional variable using the logical connectives "and", "or", "not", "implies", and so forth. In predicate logic the "atom is split", and we consider the parts of a proposition as "verbs" (predicates) and "nouns" (terms). So person(X) is a one argument predicate applied to the term X.
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comment How to sum up this series and simplify yet another one?
In your second series the finite inner sum (over $m$) is geometric, so it can be replaced by an explicit expression in terms of $n$. Have you explored this?
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comment How to sum up this series and simplify yet another one?
I had in mind showing $|a_n| \lt 1/(n^3 - 1)$ for every $n\gt 1$, so $|a_n| \lt 0.5/n^3$ for all sufficiently large $n$.
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comment Why is this answer “spam or offensive”?
@DanielFischer: Thanks for doing that; just knowing what is possible for the moderators is a big help. By "errant deletions" I meant to connect with "errant spam flag" as used above it, so only in the narrower sense.
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revised Why is this answer “spam or offensive”?
link to Help Center FAQ about consequences for spam posting
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revised Why is this answer “spam or offensive”?
added link to another instance for 10k users; tweaked wording and broached how to handle
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answered Why is this answer “spam or offensive”?
1d
comment New primality test, now what (publishing and proof)?
It is not clear what you are asking. To publish an algorithm or a theorem requires that you present it in written form. Merely claiming to have accomplished something amazing, with no further explanation, is not asking a math related Question.
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