User contributions for Ebony Jackson
A user with 1,084 edits. Account created on 16 May 2009.
10 March 2024
- 08:4408:44, 10 March 2024 diff hist +1,004 Talk:Division by zero →Calculus paragraph: trying to get on the same page
- 04:2604:26, 10 March 2024 diff hist +546 Talk:Division by zero →Calculus paragraph: The standard for verifiability applies in the lead. Informal statements are OK if they are correct, but not if they are plain wrong.
9 March 2024
- 21:3821:38, 9 March 2024 diff hist +232 User talk:DVdm →Division by zero: new section Tag: New topic
- 21:3521:35, 9 March 2024 diff hist +300 User talk:Jacobolus →Divison by zero: Comments on Division by Zero moved to talk page.
- 21:3121:31, 9 March 2024 diff hist +954 Talk:Division by zero →Calculus paragraph: new section Tag: New topic
- 21:2021:20, 9 March 2024 diff hist +1,120 User talk:Jacobolus →Divison by zero: new section Tag: New topic
- 21:0921:09, 9 March 2024 diff hist +114 Division by zero I rewrote it without the formulas. In fact, it is now less technical than the original, with fewer formulas. Made the correction that 0/0 is the indeterminate form, not the ratio of functions. Tags: Reverted Disambiguation links added
- 19:2419:24, 9 March 2024 diff hist +155 Division by zero Becoming arbitrarily large is not the same as tending to infinity (could oscillate, for example), so the wording has been made more precise. Also clarified that it is 0/0 that is called an indeterminate form. Tags: Reverted Disambiguation links added
- 05:4805:48, 9 March 2024 diff hist +26 Domain (mathematical analysis) →Conventions: Sets of finite measure are not necessarily bounded. The interior of the complement of a bounded domain is not necessarily a domain - it might be disconnected.
- 05:1205:12, 9 March 2024 diff hist +11 Division by zero →Early attempts: Whether this "leads to algebraic absurdities" depends on what other properties of arithmetic operations one is assuming; it's not an absolute truth. It's not clear what specifically is being claimed here.
- 04:5704:57, 9 March 2024 diff hist −63 Division by zero Undid revision 1212700828 by A butterflys (talk) - vandalism Tag: Undo
6 January 2024
- 17:2517:25, 6 January 2024 diff hist −557 Division by zero →Fallacies: No need to cancel 0/0. Cancelling 0 from both sides is enough. Calling out the transitivity property just distracts from the main point here (and anyway, it is also using the symmetric property). I removed the reference, which did not contain this explanation anyway. We don't need to define fallacy here, since there's a wikilink for those who need it.
- 17:0017:00, 6 January 2024 diff hist −298 Division by zero →Calculus: The calculation of the limit was simplified. Also, I think it is the expression 0/0 that is the indeterminate form, not the limit.
15 December 2023
- 08:0308:03, 15 December 2023 diff hist −78 Field (mathematics) I would not say that Galois theory is needed for proving the impossibility of angle trisection and squaring the circle. I removed the statement that Galois initiated Galois theory; anyone who wants to know this can click the link to the Galois theory article.
25 November 2023
- 16:3316:33, 25 November 2023 diff hist +5 m Group (mathematics) →Uniqueness of identity element: Use a colon to show that what follows is the explanation for what came before.
19 November 2023
- 18:3118:31, 19 November 2023 diff hist +674 Talk:Ring (mathematics) →Rather unclear formulation implicitly including unitarity: Follow peer-reviewed sources, not other online encyclopediae
9 November 2023
- 02:5202:52, 9 November 2023 diff hist +882 Talk:Ring (mathematics) →Rather unclear formulation implicitly including unitarity: Maybe also discuss at talk page for Wikipedia Manual of Style for Mathematics?
- 01:3301:33, 9 November 2023 diff hist +1 m Weierstrass preparation theorem →Tate algebras: typo
18 October 2023
- 02:4802:48, 18 October 2023 diff hist +36 Group (mathematics) →Definition: Clarifying that the uniqueness of the identity and uniqueness of inverses are not part of the axioms, but are consequences of the axioms.
- 02:4402:44, 18 October 2023 diff hist −20 Group (mathematics) Although one does not change the concept of group if one requires it to be nonempty, it is cleaner not to add this condition, and I believe that most sources do not include this condition. With the condition there, every time one wants to check that a set with an operation is a group, one needs to check separately that it is nonempty.
24 September 2023
- 05:3805:38, 24 September 2023 diff hist +11 Normal extension →Definition: The embeddings should be over K.
13 September 2023
- 19:1319:13, 13 September 2023 diff hist −388 Free module →Generalizations: A perfect local Dedekind ring is a field, so the (now removed) sentence about them was rather silly - probably original research. Simplified some other statements.
2 September 2023
- 18:5618:56, 2 September 2023 diff hist +8 Long Lake (Maine) →External links: dead link
- 16:1916:19, 2 September 2023 diff hist +3 Set (mathematics) Moved history section to the end, to start with a more user-friendly introduction to sets; see Talk page for details.
8 August 2023
- 07:5207:52, 8 August 2023 diff hist −268 Don't Cry for Me Argentina →Recording and composition: The sentence removed was simply wrong, not supported by the reference. The song does not go from C to F-flat.
- 02:3102:31, 8 August 2023 diff hist +404 Talk:Set (mathematics) →History: new section Tag: New topic
- 01:3501:35, 8 August 2023 diff hist +137 Fitting ideal →Fitting image: I think the morphism needs to be finite for the Fitting ideal to be defined. I didn't check carefully whether a noetherian hypothesis is required.
26 May 2023
- 06:4706:47, 26 May 2023 diff hist +88 Height function →Weil height: O(1) is a bounded function here, not Serre's twisting sheaf!
22 May 2023
- 21:3121:31, 22 May 2023 diff hist +1,186 Talk:Metric tensor →Distance: Please explain what you think is wrong.
18 May 2023
- 21:1621:16, 18 May 2023 diff hist +437 Binomial theorem Undid good faith revision 1155426823 by Graham87 (talk). Whatever damage was caused by block evasion in April has already been undone, and the newer edits are supported by relevant citations, so I'd let them stand, unless there are concerns with the specific content, in which case let's discuss it item by item. Tag: Undo
10 May 2023
- 04:5004:50, 10 May 2023 diff hist −8 m Hadamard matrix →Properties: typography
5 May 2023
- 04:0104:01, 5 May 2023 diff hist +187 Binomial theorem →History: Euclid and Diophantus were not contemporaries, so "meanwhile" is the wrong word. According to the cited reference, it is not clear that Diophantus had the binomial theorem for exponent 3 in general. Aryabhatta is a common misspelling, according to Wikipedia. Tag: Reverted
18 April 2023
- 01:5601:56, 18 April 2023 diff hist 0 Support (measure theory) →Definition: fixing typo: X --> x
9 February 2023
- 06:4406:44, 9 February 2023 diff hist 0 m Oliver Ford uncapitalize "he" current
6 February 2023
- 22:0222:02, 6 February 2023 diff hist −137 Real number The Brittanica reference cited does not say anything about physical reality, or that Descartes was the first to use the term.
23 January 2023
- 00:0300:03, 23 January 2023 diff hist +396 Talk:Group (mathematics) →Closure: 2-sided axioms are intentional
22 January 2023
- 23:3823:38, 22 January 2023 diff hist −10 Limit (mathematics) Undid good faith revision 1134120701 by Undergalf (talk) "Limit of a function" and "limit of a sequence" are commonly used expressions with slightly different meanings. "Limit of an output" is not common. If the goal is to explain what a function is, then it would be better to do that at function (mathematics). Tag: Undo
- 23:2323:23, 22 January 2023 diff hist +387 Talk:Area of a circle →Can this ref be considered valid?: OK to remove link, but leave the fact there WP:CALC
14 January 2023
- 16:2716:27, 14 January 2023 diff hist +27 Group (mathematics) →Group homomorphisms: It is clearer for beginners, in the definition of homomorphism, to use different symbols for the two different group laws. Also, using \colon instead of : for functions, for appropriate spacing.
- 16:2116:21, 14 January 2023 diff hist −74 Integral domain The zero-product property is not an equivalent definition; it is the same definition! (And the term is not so common in the literature, compared to the other terms being used here.) I made a wiki-link to it instead of adding it to the already long list of equivalent definitions. I also standardized the spelling of "nonzero" (it was already without hyphen in all but one place).
- 16:0216:02, 14 January 2023 diff hist +1 m Subgroup →Subgroup tests: comma (for nonrestrictive clause)
9 January 2023
- 07:1907:19, 9 January 2023 diff hist −7 m Complex logarithm →Applications: Correcting a bot's attempt to repair a broken anchor
1 January 2023
- 03:3603:36, 1 January 2023 diff hist +94 Abhyankar's inequality Explain rank.
28 December 2022
- 04:3304:33, 28 December 2022 diff hist −20 Ring (mathematics) →Module: As stated earlier in the article, rings have a 1 in this article. The module operation is denoted by juxtaposition.
- 04:2704:27, 28 December 2022 diff hist +53 Simple ring →Characterization: Simple algebras are required to be nonzero. Made the wording more precise.
26 December 2022
- 21:4121:41, 26 December 2022 diff hist +119 User talk:OlliverWithDoubleL →Ring_(mathematics): thank you
- 20:3620:36, 26 December 2022 diff hist +576 User talk:OlliverWithDoubleL →Ring_(mathematics): new section Tag: New topic
- 20:2920:29, 26 December 2022 diff hist +2 m Ring (mathematics) →Products and powers: Fixing more typos.
- 20:2820:28, 26 December 2022 diff hist −2 m Ring (mathematics) →Products and powers: fixing typos
- 20:2620:26, 26 December 2022 diff hist +3 m Ring (mathematics) →Non-rings: reordered the words in a sentence to clarify
