User talk:Michael Slone

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Fancy meeting you here!

Thanks for your support on my RfC. I wasn't aware that you were an editor, even. Small world, I guess. Kelly Martin (talk) 23:56, 31 December 2005 (UTC)

RFC/KM

You commented on Kelly Martin's second RfC. it is up for archival. you may vote at Wikipedia_talk:Requests_for_comment/Kelly_Martin#Archiving_this_RfC. CastAStone|^(talk) 03:38, 14 January 2006 (UTC)

Sumofpi template

Kris18: Thanks for making the aprox. sign on the template. (by the way, I already knew pi was an irrational number)

9 lemma

I wonder if you know where the nine lemma is useful? --HappyCamper 03:48, 23 March 2006 (UTC)

The nine lemma is essentially a trivial corollary of the snake lemma. I have not personally encountered a situation where it is worthwhile to invoke the nine lemma instead of the snake lemma (the local expert in homological algebra in my department concurs). The snake lemma itself is widely applicable in homological algebra; in particular, it is used to prove the existence of long exact sequences in homology. Cartan-Eilenberg contains a result which superficially looks like the nine lemma, but does not require it for its proof:

If $0\to A'\to A\to A''\to 0$ is a short exact sequence of modules, then it can be embedded in a commutative diagram

File:Simultaneous resolution.png

where $P'$, $P$, and $P''$ are projective, all rows and columns are exact, and the middle row splits. (The left and right columns can be specified in advance.)

The Horseshoe Lemma (or "simultaneous resolution theorem") is a consequence of this; it appears to be missing from PlanetMath and Wikipedia, and I will try to fix that "soon". Michael Slone (talk) 21:19, 27 March 2006 (UTC)

This is wonderful - thanks so much for taking the time to make this article! Homological algebra is something that quite interests me, but would probably be some time before I can fully understand those articles. --HappyCamper 22:21, 4 April 2006 (UTC)

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Apostrophes

Meh. Pouint of contention: I was always taught that you put an apostrophe where there is a letter missing. I'm not really in the mood to argue it. I still think I am right, but for the sake of it being 3am, I'll let it lie.

This time.

xxx HawkerTyphoon 02:12, 22 June 2006 (UTC)

Meh. Pouint of contention: I was always taught that you put an apostrophe where there is a letter missing. I'm not really in the mood to argue it. I still think I am right, but for the sake of it being 3am, I'll let it lie.

This time.

Xxx HawkerTyphoon 02:12, 22 June 2006 (UTC)

The apostrophe is also used to mark case. The character Woz, as far as I can tell from reading Eureka 7, is not just one who hacks on ships, but in particular is the hacker of the ship Gekko-Go. That would make him the ship's hacker. But if you still feel the apostrophe is unwarranted, I won't argue if you remove it. Michael Slone (talk) 03:05, 22 June 2006 (UTC)

The things I do for Wikipedia. Six AM and work in 3 hours... Leave it in. I don't care anymore. I'm going to bed and to hell with grammar. HawkerTyphoon 05:23, 22 June 2006 (UTC)

Thanks

Thanks for undoing the vandalism spree by 68.239.73.183. This person went around removing my changes and hacking my user page, but you seem to have caught all the vandalisms. Korny O'Near 19:28, 18 July 2006 (UTC)

Re Islam

Yeah. Well spotted Michael. -- Szvest 19:17, 26 August 2006 (UTC) User:FayssalF/Sign

Greetings Returned!

Hello, back! How are you? Lkinkade 11:30, 30 August 2006 (UTC)

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If you have feedback on how to make SuggestBot better, please tell me on SuggestBot's talk page. Thanks from ForteTuba, SuggestBot's caretaker.

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