Equivalence relation: Revision history

8 September 2024

• curprev 12:5812:58, 8 September 2024‎ Willondon talk contribs‎ 31,214 bytes +863‎ Undid revision 1244666733 by 78.146.219.180 (talk); test edit? undo Tag: Undo
• curprev 12:4912:49, 8 September 2024‎ 78.146.219.180 talk‎ 30,351 bytes −863‎ No edit summary undo Tag: Reverted

25 July 2024

• curprev 12:5612:56, 25 July 2024‎ OwenX talk contribs‎ m 31,214 bytes −4‎ Removing link(s) Wikipedia:Articles for deletion/Classical mathematics closed as delete (XFDcloser) undo

21 July 2024

• curprev 08:3308:33, 21 July 2024‎ Frost talk contribs‎ m 31,218 bytes +455‎ Reverted edits by 200.108.187.31 (talk) (HG) (3.4.12) undo Tags: Huggle Rollback
• curprev 08:3008:30, 21 July 2024‎ 200.108.187.31 talk‎ 30,763 bytes −455‎ No edit summary undo Tags: Reverted Visual edit Mobile edit Mobile web edit
• curprev 08:2808:28, 21 July 2024‎ Materialscientist talk contribs‎ m 31,218 bytes +95‎ Reverted edits by 200.108.187.31 (talk) (HG) (3.4.12) undo Tags: Huggle Rollback
• curprev 08:2708:27, 21 July 2024‎ 200.108.187.31 talk‎ 31,123 bytes −95‎ No edit summary undo Tags: Reverted Visual edit Mobile edit Mobile web edit

24 January 2024

• curprev 16:3116:31, 24 January 2024‎ Tarnoob talk contribs‎ 31,218 bytes −30‎ →‎External links: cat. undo

28 November 2023

• curprev 15:1515:15, 28 November 2023‎ Quondum talk contribs‎ 31,248 bytes +4‎ →‎Quotient set: capitalizing article referred to *as an article* undo
• curprev 15:1415:14, 28 November 2023‎ Quondum talk contribs‎ 31,244 bytes +13‎ fmt one more expression in the lead undo
• curprev 15:1215:12, 28 November 2023‎ Quondum talk contribs‎ 31,231 bytes +328‎ fmt undo

2 November 2023

• curprev 22:4222:42, 2 November 2023‎ Jochen Burghardt talk contribs‎ 30,903 bytes −32‎ undid 2 edits: R was given correctly before, i.e. such that [a]={a} and [b]=[c]={b,c} as stated in the next line undo Tag: Undo
• curprev 16:3016:30, 2 November 2023‎ 8.28.178.144 talk‎ 30,935 bytes +16‎ →‎Simple example: An equivalence relation is reflexive, symmetric, and transitive. From the initial set R, symmetricity was not met. (I am assuming here that (a, b) is not equivalent to (b, a) by definition of the cartesian product of X, since R⊆ (X×X).) Since R is not clearly defined such that its transitivity can be verified, I leave it to the reader and to myself to safely assume that R is transitive. undo Tags: Reverted Visual edit: Switched
• curprev 16:1916:19, 2 November 2023‎ 8.28.178.144 talk‎ 30,919 bytes +16‎ →‎Simple example undo Tags: Reverted Visual edit: Switched

28 August 2023

• curprev 04:0104:01, 28 August 2023‎ 2603:6011:5101:6900:c138:36d7:9774:4ae2 talk‎ 30,903 bytes +155‎ No edit summary undo

25 June 2023

• curprev 06:4806:48, 25 June 2023‎ David Eppstein talk contribs‎ 30,748 bytes +35‎ →‎See also: Cluster graph undo

22 May 2023

• curprev 18:3518:35, 22 May 2023‎ Chaossnek talk contribs‎ 30,713 bytes +64‎ →‎Equivalence class, quotient set, partition: Changed section title to better reflect content of section, and slightly changed leading sentence to better reflect style of well-written mathematics articles. Further changes needed. undo Tag: Visual edit

28 January 2023

• curprev 03:5403:54, 28 January 2023‎ Mgkrupa talk contribs‎ 30,649 bytes +48‎ →‎See also undo

17 October 2022

• curprev 18:3118:31, 17 October 2022‎ 2603:3024:1c07:1c00:7133:6ab6:9cae:7c7d talk‎ 30,601 bytes +16‎ →‎Definition undo Tag: Visual edit

16 October 2022

• curprev 03:1303:13, 16 October 2022‎ Edwin of Northumbria talk contribs‎ 30,585 bytes 0‎ Punctuation correction. undo Tags: Mobile edit Mobile web edit Advanced mobile edit
• curprev 00:5000:50, 16 October 2022‎ Edwin of Northumbria talk contribs‎ 30,585 bytes +26‎ →‎Alternative definition using relational algebra: Renamed section. Added internal link. undo Tags: Mobile edit Mobile web edit Advanced mobile edit

22 September 2022

• curprev 20:0720:07, 22 September 2022‎ Mgkrupa talk contribs‎ m 30,559 bytes −1‎ Fix undo
• curprev 20:0620:06, 22 September 2022‎ Mgkrupa talk contribs‎ 30,560 bytes +70‎ Copy editing undo

12 August 2022

• curprev 06:4906:49, 12 August 2022‎ TakuyaMurata talk contribs‎ 30,490 bytes +39‎ →‎See also: * Hyperfinite equivalence relation undo

7 August 2022

• curprev 00:0700:07, 7 August 2022‎ Mgkrupa talk contribs‎ 30,451 bytes +39‎ Added {{Mathematical logic}} undo

8 June 2022

• curprev 12:1512:15, 8 June 2022‎ Jochen Burghardt talk contribs‎ 30,412 bytes +18‎ →‎top: refer to the relation, not to one of it's pairs undo
• curprev 03:5203:52, 8 June 2022‎ Rgdboer talk contribs‎ 30,394 bytes +9‎ equipollence (geometry) rather than equality undo

6 June 2022

• curprev 12:0612:06, 6 June 2022‎ TentativeTypist talk contribs‎ 30,385 bytes +82‎ →‎Equivalent definition using algebra of relations: Clarified footnote on notational variants undo Tag: Visual edit

3 June 2022

• curprev 12:2512:25, 3 June 2022‎ TentativeTypist talk contribs‎ m 30,303 bytes +4‎ →‎Equivalent definition using algebra of relations: Added link to identity function. undo Tag: Visual edit
• curprev 12:2412:24, 3 June 2022‎ TentativeTypist talk contribs‎ 30,299 bytes +1,364‎ →‎Definition: Added equivalent definition of equivalence relation undo Tag: Visual edit

7 May 2022

• curprev 00:3300:33, 7 May 2022‎ Rgdboer talk contribs‎ m 28,935 bytes −4‎ →‎Connections to other relations: serial > total undo

26 December 2021

• curprev 02:1702:17, 26 December 2021‎ Joel Brennan talk contribs‎ m 28,939 bytes −1‎ No edit summary undo

29 November 2021

• curprev 11:0211:02, 29 November 2021‎ Jochen Burghardt talk contribs‎ 28,940 bytes −25‎ →‎See also: linked above undo
• curprev 09:5509:55, 29 November 2021‎ Jochen Burghardt talk contribs‎ 28,965 bytes −41‎ →‎Relations that are not equivalences: negation of symmetry is a conjunction, not an implication; the empty relation is always sym and trans undo
• curprev 09:4909:49, 29 November 2021‎ Jochen Burghardt talk contribs‎ 29,006 bytes +220‎ →‎Equivalence relations: n resp. f need to be fixed before undo
• curprev 09:4109:41, 29 November 2021‎ Jochen Burghardt talk contribs‎ 28,786 bytes +40‎ →‎Simple example: avoid "let" when no variable is defined; use names X and R undo
• curprev 08:5008:50, 29 November 2021‎ 193.204.189.14 talk‎ 28,746 bytes +317‎ →‎Comparing equivalence relations: changed unicode syms to latex math syms undo

22 November 2021

• curprev 00:3500:35, 22 November 2021‎ Fgnievinski talk contribs‎ 28,429 bytes +29‎ →‎top undo

21 November 2021

• curprev 10:2110:21, 21 November 2021‎ William M. Connolley talk contribs‎ 28,400 bytes −72‎ rv: not a great example and we've got enough already anyway undo Tag: Undo

20 November 2021

• curprev 22:2222:22, 20 November 2021‎ 150.108.240.148 talk‎ 28,472 bytes +72‎ →‎Equivalence relations: Enhanced example undo Tags: Reverted Mobile edit Mobile web edit

13 November 2021

• curprev 18:4218:42, 13 November 2021‎ Jochen Burghardt talk contribs‎ 28,400 bytes +124‎ →‎Connections to other relations: mention Euclidean relations from deleted section here undo
• curprev 18:3918:39, 13 November 2021‎ Jochen Burghardt talk contribs‎ 28,276 bytes −1,514‎ →‎Euclidean relations: rm unsourced section that duplicates property 4 of Euclidean relation#Properties undo
• curprev 18:3418:34, 13 November 2021‎ Jochen Burghardt talk contribs‎ 29,790 bytes −76‎ →‎Generating equivalence relations: use "if" in definition; indent on own line to clarify that this is a relation definition; use infix throughout the article for relation application; convert to TeX to obtain a better rendering undo
• curprev 11:2211:22, 13 November 2021‎ Eliasgv3 talk contribs‎ m 29,866 bytes −2‎ →‎Generating equivalence relations: The previous definition may fail reflexivity if (x,x)∉R. The current definition prevents that, as it done in https://math.stackexchange.com/a/83902/394668 undo Tag: Visual edit

21 October 2021

• curprev 20:0920:09, 21 October 2021‎ MrOllie talk contribs‎ 29,868 bytes −211‎ See Wikipedia_talk:WikiProject_Spam#Mass_spam_of_mathvault.ca undo

2 October 2021

• curprev 01:0301:03, 2 October 2021‎ Jochen Burghardt talk contribs‎ 30,079 bytes +45‎ Undid revision 1047583961 by Laiwoonsiu (talk): when R is an equivalence, "a \sim_R b" means the same as "a R b"; variations include e.g. "a \stackrel{R}{\sim} b" undo Tag: Undo

1 October 2021

• curprev 14:5614:56, 1 October 2021‎ Laiwoonsiu talk contribs‎ 30,034 bytes −45‎ Corrected the notations for "a equivalent to b with respect to relation R". The notation "a R b" only indicates that "a is related to b with respect to R", but not "a is equivalent to b". undo Tag: Reverted

29 July 2021

• curprev 09:1809:18, 29 July 2021‎ Edootjuh talk contribs‎ m 30,079 bytes +1‎ →‎Notation: formatting undo Tag: 2017 wikitext editor

26 July 2021

• curprev 19:3519:35, 26 July 2021‎ Mgkrupa talk contribs‎ m 30,078 bytes +30‎ →‎External links undo
• curprev 14:2714:27, 26 July 2021‎ Macrakis talk contribs‎ 30,048 bytes −36‎ No reason to mention that ≥ is a total order here. undo