Universal algebra: Revision history

20 January 2024

• curprev 18:2818:28, 20 January 2024‎ Erudecorp talk contribs‎ 24,567 bytes +31‎ →‎Basic idea: Put explanation of 'arity' in its own mini section, so people can skip it. undo Tags: Mobile edit Mobile web edit

29 November 2023

• curprev 02:5002:50, 29 November 2023‎ Quondum talk contribs‎ 24,536 bytes +441‎ →‎References: {{citation}} templates use undo

27 November 2023

• curprev 21:5421:54, 27 November 2023‎ Quondum talk contribs‎ 24,095 bytes +10‎ →‎See also: does not make sense to use a redirect undo
• curprev 21:5221:52, 27 November 2023‎ Quondum talk contribs‎ 24,085 bytes +38‎ wording undo

25 November 2023

• curprev 18:0918:09, 25 November 2023‎ Quondum talk contribs‎ 24,047 bytes +4‎ template parameter fix undo

14 November 2023

• curprev 23:4423:44, 14 November 2023‎ Quondum talk contribs‎ 24,043 bytes +39‎ fmt undo

24 September 2023

• curprev 00:5000:50, 24 September 2023‎ 67.21.186.136 talk‎ 24,004 bytes −20‎ fixed broken link undo Tag: Visual edit

31 July 2023

• curprev 16:0316:03, 31 July 2023‎ --WikiUser1234945-- talk contribs‎ m 24,024 bytes −34‎ Reverted edits by 223.189.180.148 (talk) (HG) (3.4.12) undo Tags: Huggle Rollback
• curprev 16:0316:03, 31 July 2023‎ 223.189.180.148 talk‎ 24,058 bytes +34‎ →‎Some basic theorems undo Tags: Reverted Mobile edit Mobile web edit

2 April 2023

• curprev 20:2020:20, 2 April 2023‎ Complexity1 talk contribs‎ 24,024 bytes −39‎ missing link removal undo

20 January 2023

• curprev 05:5205:52, 20 January 2023‎ Halofpenguinco talk contribs‎ m 24,063 bytes +33‎ →‎Basic idea undo

31 December 2022

• curprev 20:0120:01, 31 December 2022‎ Magidin talk contribs‎ m 24,030 bytes +15‎ Undid revision 1130609309 by 188.242.127.150 (talk) rv good faith edit; there is an algebraic theory of groupoids, part of algebras with partial operations. Wiki page starts with "algebraic definition" undo Tag: Undo
• curprev 01:4701:47, 31 December 2022‎ 188.242.127.150 talk‎ 24,015 bytes −15‎ →‎Other examples: groupoids are not an algebraic theory undo Tag: Reverted

6 August 2022

• curprev 15:0715:07, 6 August 2022‎ John Baez talk contribs‎ 24,030 bytes +27‎ →‎Basic idea: reorganized to put all infinitary stuff at the end. undo
• curprev 15:0415:04, 6 August 2022‎ John Baez talk contribs‎ 24,003 bytes −4‎ →‎Basic idea: "thus leading to" was vague undo

21 January 2022

• curprev 08:1908:19, 21 January 2022‎ David Eppstein talk contribs‎ 24,007 bytes +20‎ Undid revision 1067007231 by Donko XI (talk) totally uninformative. Anyone looking at the title can see it's mathematics. undo Tag: Undo
• curprev 06:4006:40, 21 January 2022‎ Donko XI talk contribs‎ 23,987 bytes −20‎ Changing short description from "Theory of algebraic structures in general" to "Branch of mathematics" (Shortdesc helper) undo Tag: Reverted

7 January 2022

• curprev 09:4709:47, 7 January 2022‎ Jochen Burghardt talk contribs‎ 24,007 bytes −25‎ →‎top: shorten description, add "in general" undo
• curprev 04:1204:12, 7 January 2022‎ Mark viking talk contribs‎ 24,032 bytes +89‎ Importing Wikidata short description: "Field of mathematics concerning the theory of algebraic structures" (Shortdesc helper) undo

12 December 2021

• curprev 19:0319:03, 12 December 2021‎ Jochen Burghardt talk contribs‎ 23,943 bytes +79‎ →‎Varieties: junctor restrictions may have been meant by "rule out predicate logic" undo
• curprev 18:5818:58, 12 December 2021‎ Jochen Burghardt talk contribs‎ 23,864 bytes −33‎ →‎Varieties: a variety definition admits a subset of predicate logic, obeying the restrictions given right here undo

6 December 2021

• curprev 23:1123:11, 6 December 2021‎ Mathnerd314159 talk contribs‎ 23,897 bytes +29‎ →‎Basic idea: : seems to just be a reiteration of algebraic structure undo

25 November 2021

• curprev 01:5801:58, 25 November 2021‎ Chongkian talk contribs‎ 23,868 bytes −22‎ the article is listed in the navbox/sidebar per WP:NAV-WITHIN undo

27 August 2021

• curprev 14:3614:36, 27 August 2021‎ Michael Kinyon talk contribs‎ 23,890 bytes −109‎ →‎Varieties: Deleted the uncited sentence "Some authors consider varieties to be the main focus of universal algebra". Besides the fact that it isn't cited, it isn't true. Just as much attention is paid in modern universal algebra to quasivarieties and pseudovarieties. undo

15 July 2021

• curprev 21:3921:39, 15 July 2021‎ 178.51.87.214 talk‎ 23,999 bytes +218‎ →‎Constraint satisfaction problem undo

24 March 2021

• curprev 13:2113:21, 24 March 2021‎ Tom.Reding talk contribs‎ m 23,781 bytes +21‎ +{{Authority control}} (2 IDs from Wikidata), WP:GenFixes on undo Tag: AWB

4 December 2020

• curprev 20:2420:24, 4 December 2020‎ Monkbot talk contribs‎ m 23,760 bytes −11‎ Task 18 (cosmetic): eval 5 templates: del empty params (1×); hyphenate params (1×); undo Tag: AWB

25 August 2020

• curprev 04:1804:18, 25 August 2020‎ GreenC bot talk contribs‎ 23,771 bytes −25‎ Reformat 1 archive link. Wayback Medic 2.5 undo

28 April 2020

• curprev 17:1717:17, 28 April 2020‎ TakuyaMurata talk contribs‎ 23,796 bytes +61‎ →‎See also: +1 comment out another undo

18 March 2020

• curprev 04:3904:39, 18 March 2020‎ Anita5192 talk contribs‎ m 23,735 bytes −43‎ Reverted edits by 1.128.110.151 (talk) to last version by Wikeithpedia undo Tag: Rollback
• curprev 04:3004:30, 18 March 2020‎ 1.128.110.151 talk‎ 23,778 bytes +43‎ Its stupid due to it being about explaining what algebra is about and not actually doing algebra undo Tags: Mobile edit Mobile web edit

18 February 2020

• curprev 03:0603:06, 18 February 2020‎ Wikeithpedia talk contribs‎ m 23,735 bytes +4‎ Added links undo Tags: canned edit summary Mobile edit Mobile app edit iOS app edit
• curprev 03:0303:03, 18 February 2020‎ Wikeithpedia talk contribs‎ m 23,731 bytes +24‎ Added links undo Tags: canned edit summary Mobile edit Mobile app edit iOS app edit

25 January 2020

• curprev 03:4403:44, 25 January 2020‎ Meta-point talk contribs‎ 23,707 bytes −2‎ →‎Generalizations: in particularly -> in particular undo

16 January 2020

• curprev 12:2212:22, 16 January 2020‎ Jochen Burghardt talk contribs‎ 23,709 bytes +28‎ →‎Equations: re-target to new section containing formal definition undo

16 December 2019

• curprev 01:5601:56, 16 December 2019‎ Rgdboer talk contribs‎ m 23,681 bytes +133‎ →‎History: place Brainerd inline undo
• curprev 01:5401:54, 16 December 2019‎ Rgdboer talk contribs‎ m 23,548 bytes −144‎ →‎References: pick up Brainerd undo

5 December 2019

• curprev 09:3009:30, 5 December 2019‎ Tea2min talk contribs‎ 23,692 bytes +112‎ Undid revision 929359800 by 2600:1012:B149:BC3D:8CF4:2EC8:F620:2097 (talk) undo Tag: Undo
• curprev 09:0809:08, 5 December 2019‎ 2600:1012:b149:bc3d:8cf4:2ec8:f620:2097 talk‎ 23,580 bytes −112‎ →‎Basic idea undo

1 August 2019

• curprev 23:4423:44, 1 August 2019‎ Zaunlen talk contribs‎ 23,692 bytes −719‎ Deleted a paragraph because it contained wrong and unclear information. It is unclear what is meant by "defining an algebra via the relations in the algebra". The linked Birkhoff's theorem is unrelated to this issue. The part with the Galois connection between algebraic and relational structures is also confusing. Birkhoff's HSP theorem characterizes the Galois closed sets of the satisfaction relation, but this is a completely different Galois connection, so it is unclear what is meant here. undo

25 July 2019

• curprev 17:3317:33, 25 July 2019‎ Jarble talk contribs‎ 24,411 bytes +78‎ adding links to references using Google Scholar undo

16 June 2019

• curprev 00:0900:09, 16 June 2019‎ Agusbou2015 talk contribs‎ m 24,333 bytes +1‎ Fixing typos (via WP:JWB) undo

6 June 2019

• curprev 11:0511:05, 6 June 2019‎ Varkora talk contribs‎ m 24,332 bytes −13‎ Fixed reference to Birkhoff's theorem (which in this case is the one relating to lattices, rather than subvarieties). undo Tag: Visual edit

28 April 2019

• curprev 07:2707:27, 28 April 2019‎ Anita5192 talk contribs‎ m 24,345 bytes 0‎ →‎Generalizations: Changed single quotation marks to double. undo
• curprev 07:2407:24, 28 April 2019‎ Anita5192 talk contribs‎ 24,345 bytes −30‎ Undid revision 894444829 by FKranhold (talk)Reverted curly quotation marks and apostrophes per MOS:CURLY. undo Tag: Undo
• curprev 07:2307:23, 28 April 2019‎ Anita5192 talk contribs‎ 24,375 bytes −30‎ Undid revision 894446014 by FKranhold (talk)Reverted curly quotation marks and apostrophes per MOS:CURLY. undo Tag: Undo

27 April 2019

• curprev 23:0623:06, 27 April 2019‎ FKranhold talk contribs‎ m 24,405 bytes +30‎ More Typography undo Tag: Visual edit
• curprev 22:5522:55, 27 April 2019‎ FKranhold talk contribs‎ m 24,375 bytes +30‎ Typography undo Tag: Visual edit

20 February 2019

• curprev 01:3701:37, 20 February 2019‎ 103.226.174.12 talk‎ 24,345 bytes +28‎ →‎See also: Added Representation theory undo

16 December 2018

• curprev 12:4712:47, 16 December 2018‎ Magyar25 talk contribs‎ 24,317 bytes −19‎ →‎Varieties: Copy edit undo