Free product: Revision history

8 July 2024

• curprev 06:4606:46, 8 July 2024‎ Olivierd talk contribs‎ 8,989 bytes +82‎ →‎Construction: Making explicit the possibility of the expty sequence or of one-element sequences. undo

13 May 2024

• curprev 14:2214:22, 13 May 2024‎ D.Lazard talk contribs‎ 8,907 bytes +17‎ Undid revision 1223643708 by 137.132.27.12 (talk) Do not use the free product before its definition undo
• curprev 13:0513:05, 13 May 2024‎ 137.132.27.12 talk‎ 8,890 bytes −12‎ →‎Construction undo

11 December 2023

• curprev 01:3601:36, 11 December 2023‎ Quondum talk contribs‎ 8,902 bytes +82‎ +{{short description|Operation that combines groups}} undo

29 September 2023

• curprev 02:3802:38, 29 September 2023‎ Wingle Bingus talk contribs‎ m 8,820 bytes +5‎ →‎Examples: Changed equality to isomorphism symbol to more precisely match the statement before the equation. Added matching punctuation. undo

30 May 2023

• curprev 17:5417:54, 30 May 2023‎ 192.76.8.95 talk‎ 8,815 bytes +60‎ Fixed small error regarding fundamental group of wedge product of spaces undo

23 March 2023

• curprev 05:4005:40, 23 March 2023‎ David Eppstein talk contribs‎ 8,755 bytes −274‎ rm non-refs undo

27 November 2022

• curprev 12:5512:55, 27 November 2022‎ Waltpohl talk contribs‎ m 9,029 bytes +47‎ →‎References: fix planetmath link undo

14 July 2022

• curprev 06:1806:18, 14 July 2022‎ Tea2min talk contribs‎ 8,982 bytes +1‎ Fix typo in categorization. undo

13 July 2022

• curprev 15:5215:52, 13 July 2022‎ AquitaneHungerForce talk contribs‎ m 8,981 bytes +1‎ Recat. undo

28 April 2021

• curprev 19:1619:16, 28 April 2021‎ Bender the Bot talk contribs‎ m 8,980 bytes +1‎ →‎Generalization: Free product with amalgamation: HTTP → HTTPS for the American Mathematical Society, replaced: [http://www.ams.org/ → [https://www.ams.org/ undo Tag: AWB

22 December 2020

• curprev 20:5420:54, 22 December 2020‎ Russ Woodroofe talk contribs‎ 8,979 bytes +28‎ wl Roger Alperin undo

2 November 2020

• curprev 17:1417:14, 2 November 2020‎ 2001:861:3ac0:4fa0:f1cb:b0bb:ca58:2a11 talk‎ 8,951 bytes +23‎ No edit summary undo

18 September 2020

• curprev 08:4708:47, 18 September 2020‎ Bingobro talk contribs‎ m 8,928 bytes −33‎ Reverted 1 edit by 83.50.31.120 (talk) to last revision by 2A01:CB05:8B66:1E00:FDA:CD65:D58B:17B9 undo Tags: Twinkle Undo
• curprev 08:4608:46, 18 September 2020‎ 83.50.31.120 talk‎ 8,961 bytes +33‎ →‎Presentation undo Tag: Reverted

20 March 2020

• curprev 17:3717:37, 20 March 2020‎ 2a01:cb05:8b66:1e00:fda:cd65:d58b:17b9 talk‎ 8,928 bytes +2‎ →‎Construction: (Minor edit: harmonizing notation.) Changed the usual ASCII * into the middle star ∗ to keep notations for the free product consistent. undo

19 February 2020

• curprev 03:3503:35, 19 February 2020‎ 2a02:1206:4558:1360:e9c3:b2dd:3c2b:ab6 talk‎ 8,926 bytes +20‎ →‎Examples undo

16 December 2019

• curprev 16:1116:11, 16 December 2019‎ Mosher talk contribs‎ 8,906 bytes +486‎ →‎Generalization: Free product with amalgamation: The definition given was wrong: the two homomorphisms of F must be injective in this definition. I also added the corresponding conclusion about injectivity into the amalgamated free product. undo

23 August 2019

• curprev 19:5219:52, 23 August 2019‎ Joel Brennan talk contribs‎ m 8,420 bytes +16‎ No edit summary undo

15 August 2019

• curprev 18:5018:50, 15 August 2019‎ 72.240.17.93 talk‎ 8,404 bytes −403‎ Inappropriate blurb for the introduction. undo

10 August 2019

• curprev 14:5814:58, 10 August 2019‎ Bender235 talk contribs‎ m 8,807 bytes −82‎ No edit summary undo

26 March 2019

• curprev 11:0411:04, 26 March 2019‎ Tea2min talk contribs‎ 8,889 bytes +22‎ →‎top: Nowrap undo

22 March 2019

• curprev 11:2711:27, 22 March 2019‎ Jean Raimbault talk contribs‎ 8,867 bytes −20‎ harmonis 1st par undo

21 March 2019

• curprev 21:5921:59, 21 March 2019‎ D.Lazard talk contribs‎ 8,887 bytes +25‎ →‎top: link for "universal" undo
• curprev 21:5321:53, 21 March 2019‎ D.Lazard talk contribs‎ 8,862 bytes +145‎ →‎top: clarification (see talk) undo

17 March 2019

• curprev 16:0616:06, 17 March 2019‎ BD2412 talk contribs‎ m 8,717 bytes +14‎ →‎top: Fixing links to disambiguation pages, improving links, other minor cleanup tasks undo Tag: AWB

26 December 2018

• curprev 05:5505:55, 26 December 2018‎ Luqui talk contribs‎ m 8,703 bytes +8‎ No edit summary undo

23 October 2018

• curprev 06:5906:59, 23 October 2018‎ 212.201.44.244 talk‎ 8,695 bytes +42‎ →‎Construction: minor: change from angle brackets to \langle, \rangle in the cyclic gorup. undo

6 July 2018

• curprev 13:5313:53, 6 July 2018‎ Rjwilmsi talk contribs‎ 8,653 bytes +39‎ 10.1080/00029890.1993.11990418 undo

1 February 2018

• curprev 00:1100:11, 1 February 2018‎ Byteflush talk contribs‎ m 8,614 bytes −142‎ Reverted edits by 190.80.8.25 (talk) (HG) (3.3.3) undo Tags: Huggle Rollback
• curprev 00:1100:11, 1 February 2018‎ 190.80.8.25 talk‎ 8,756 bytes +142‎ It helps person to find free product online. undo Tags: Visual edit Mobile edit Mobile web edit

25 May 2017

• curprev 03:3103:31, 25 May 2017‎ TakuyaMurata talk contribs‎ 8,614 bytes +82‎ lk undo

7 February 2017

• curprev 15:0715:07, 7 February 2017‎ Jakob.scholbach talk contribs‎ 8,532 bytes +430‎ →‎Presentation: example undo

6 August 2016

• curprev 20:1620:16, 6 August 2016‎ 89.142.61.14 talk‎ 8,102 bytes +42‎ Correction of Seifert Van-Kampen's theorem formulation (added path-connectedness of the intersection of two spaces) undo

25 January 2016

• curprev 22:0822:08, 25 January 2016‎ Rgdboer talk contribs‎ m 8,060 bytes 0‎ →‎Generalization: Free product with amalgamation: ce undo
• curprev 21:3921:39, 25 January 2016‎ Rgdboer talk contribs‎ m 8,060 bytes 0‎ ce undo
• curprev 21:3621:36, 25 January 2016‎ Rgdboer talk contribs‎ 8,060 bytes +161‎ →‎Generalization: Free product with amalgamation: re Karrass & Solitar (ext-lk free) undo

18 November 2015

• curprev 14:4214:42, 18 November 2015‎ D.Lazard talk contribs‎ 7,899 bytes −16‎ Reverted 1 edit by 2001:760:2C00:8:F1C9:CC2D:626D:40DF (talk). (TW) undo
• curprev 11:3811:38, 18 November 2015‎ 2001:760:2c00:8:f1c9:cc2d:626d:40df talk‎ 7,915 bytes +16‎ Correcting a sentence undo Tags: Mobile edit Mobile web edit

11 June 2015

• curprev 15:5215:52, 11 June 2015‎ Chris the speller talk contribs‎ m 7,899 bytes +2‎ typo(s) fixed: Therefore → Therefore, (2) using AWB undo

17 March 2015

• curprev 04:3204:32, 17 March 2015‎ Dragonflare82 talk contribs‎ 7,897 bytes +5‎ Connected needed to be changed to path-connected undo

27 February 2015

• curprev 19:4719:47, 27 February 2015‎ 131.130.16.152 talk‎ 7,892 bytes −2‎ →‎See also: Replaced reference to free object with reference to coproduct. The reference to free objects was confusing, as the free product is NOT the free object for the category of groups. But it is the coproduct. undo

17 January 2015

• curprev 20:1020:10, 17 January 2015‎ 213.151.55.44 talk‎ 7,894 bytes 0‎ →‎Presentation undo

5 December 2014

• curprev 13:1813:18, 5 December 2014‎ עוזי ו. talk contribs‎ 7,894 bytes +229‎ →‎Generalization: Free product with amalgamation undo

19 November 2014

• curprev 03:0003:00, 19 November 2014‎ Giftlite talk contribs‎ m 7,665 bytes 0‎ →‎Generalization: Free product with amalgamation: . →, undo

18 November 2014

• curprev 00:0500:05, 18 November 2014‎ David Eppstein talk contribs‎ 7,665 bytes +60‎ →‎See also: Normal form for free groups and free product of groups undo

4 October 2014

• curprev 10:5510:55, 4 October 2014‎ RonnieBrown talk contribs‎ 7,605 bytes +396‎ added a link to groupoids undo
• curprev 10:5010:50, 4 October 2014‎ RonnieBrown talk contribs‎ 7,209 bytes +165‎ →‎References: added a groupoid reference undo

26 July 2014

• curprev 07:4307:43, 26 July 2014‎ Magioladitis talk contribs‎ m 7,044 bytes −12‎ Removing invisible Unicode character/ Replacing hard spaces See WP:CHECKWIKI error #16 fix + other fixes, replaced: → (12) using AWB (10331) undo

6 September 2013

• curprev 07:3207:32, 6 September 2013‎ D.Lazard talk contribs‎ 7,056 bytes +55‎ including the exceptional case where the free product is abelian undo