Separable extension: Revision history

18 March 2025

• curprev 06:1906:19, 18 March 2025 2601:204:f181:9410:9dc3:4d5d:fc32:c10c talk 21,083 bytes +22 →Separable and inseparable polynomials: Improved wording undo

10 May 2024

• curprev 22:2222:22, 10 May 2024 LucasBrown talk contribs 21,061 bytes +56 Adding local short description: "Type of algebraic field extension", overriding Wikidata description "in field theory, an algebraic field extension" undo Tag: Shortdesc helper

18 February 2024

• curprev 11:0611:06, 18 February 2024 78.22.198.37 talk 21,005 bytes +62 No edit summary undo

22 October 2023

• curprev 12:3112:31, 22 October 2023 Hbghlyj talk contribs m 20,943 bytes −2 remove \! in LaTeX undo

2 October 2023

• curprev 15:5915:59, 2 October 2023 Andy02124 talk contribs m 20,945 bytes +86 sfn fix, add Lang undo

3 July 2023

• curprev 08:2308:23, 3 July 2023 D.Lazard talk contribs 20,859 bytes +4 Reverted 1 edit by 2A00:1370:8186:37E7:ABF8:3342:254B:AD49 (talk): Unexplained change undo Tags: Twinkle Undo

2 July 2023

• curprev 21:2621:26, 2 July 2023 2a00:1370:8186:37e7:abf8:3342:254b:ad49 talk 20,855 bytes −4 →Differential criteria undo Tag: Reverted

2 June 2023

• curprev 08:0308:03, 2 June 2023 D.Lazard talk contribs 20,859 bytes 0 Reverted 1 edit by 175.203.23.131 (talk): Unexplained change undo Tags: Twinkle Undo
• curprev 06:3806:38, 2 June 2023 175.203.23.131 talk 20,859 bytes 0 →Informal discussion undo Tag: Reverted

25 November 2022

• curprev 11:0911:09, 25 November 2022 Embmath talk contribs 20,859 bytes +28 No edit summary undo

22 October 2022

• curprev 15:5415:54, 22 October 2022 D.Lazard talk contribs 20,831 bytes +14 Reverted 1 edit by Rogolop (talk): Was correct in this case (a minimal polynomial is irreducible) undo Tags: Twinkle Undo
• curprev 15:3915:39, 22 October 2022 Rogolop talk contribs 20,817 bytes −14 Fixed wrong characterization of separable polynomials undo Tags: Reverted wikilinks removed Visual edit

10 May 2022

• curprev 21:2321:23, 10 May 2022 1234qwer1234qwer4 talk contribs m 20,831 bytes −5 →Separable extensions within algebraic extensions: punctuation, ce undo

24 April 2022

• curprev 00:2800:28, 24 April 2022 Joel Brennan talk contribs m 20,836 bytes +101 correctly formatted minus signs and \mid undo

13 April 2022

• curprev 04:2904:29, 13 April 2022 GroundclothDilemma talk contribs m 20,735 bytes −18 swtiched to more standard notation undo

31 March 2022

• curprev 17:3917:39, 31 March 2022 128.210.106.60 talk 20,753 bytes +4 →Separable and inseparable polynomials: Changed \to to \mapsto for the Frobenius endomorphism undo

26 January 2022

• curprev 15:5115:51, 26 January 2022 D.Lazard talk contribs 20,749 bytes −18 Reverted 1 edit by Anandhu Dileep (talk): Was correct and does not needs to test irreducibility undo Tags: Twinkle Undo
• curprev 15:3815:38, 26 January 2022 Anandhu Dileep talk contribs m 20,767 bytes +18 No edit summary undo Tags: Reverted Visual edit

11 July 2021

• curprev 23:5323:53, 11 July 2021 2601:200:c000:1a0:50fb:a92f:cd3f:7a3c talk 20,749 bytes −1 →Informal discussion undo
• curprev 23:5123:51, 11 July 2021 2601:200:c000:1a0:50fb:a92f:cd3f:7a3c talk 20,750 bytes +15 No edit summary undo

16 February 2021

• curprev 20:4520:45, 16 February 2021 Aliotra talk contribs m 20,735 bytes +2 ~~~~ undo

3 January 2021

• curprev 03:5403:54, 3 January 2021 Ebony Jackson talk contribs 20,733 bytes +38 As explained later in the article, a separable extension need not be an algebraic extension. Also removed "the notion of a separable closure is only interesting for imperfect fields" - it's just as interesting as algebraic closure when they coincide! undo

22 December 2020

• curprev 16:5316:53, 22 December 2020 Tom.Reding talk contribs m 20,695 bytes −5 Enum 1 author/editor WL; WP:GenFixes on undo Tag: AWB

8 December 2020

• curprev 12:5812:58, 8 December 2020 Magyar25 talk contribs 20,700 bytes +564 Give the canonical example of inseparable extension! undo Tag: Visual edit

24 July 2020

• curprev 13:4213:42, 24 July 2020 Ndcroos talk contribs m 20,136 bytes +1 →Informal discussion undo

24 October 2019

• curprev 15:3515:35, 24 October 2019 D.Lazard talk contribs 20,135 bytes +27 →Separable and inseparable polynomials: clarification, see talk undo

11 July 2019

• curprev 07:0807:08, 11 July 2019 198.36.39.183 talk 20,108 bytes −14 Made the wording less awkward undo

28 May 2019

• curprev 18:4018:40, 28 May 2019 188.154.206.128 talk 20,122 bytes +360 →Informal discussion undo

3 February 2019

• curprev 13:0013:00, 3 February 2019 70.51.158.157 talk 19,762 bytes −4 →Differential criteria undo

21 December 2018

• curprev 17:4117:41, 21 December 2018 Thatsme314 talk contribs m 19,766 bytes 0 →References undo
• curprev 17:3617:36, 21 December 2018 Thatsme314 talk contribs m 19,766 bytes +1 →Separable elements and separable extensions undo
• curprev 17:3517:35, 21 December 2018 Thatsme314 talk contribs m 19,765 bytes +2 No edit summary undo
• curprev 17:3517:35, 21 December 2018 Thatsme314 talk contribs m 19,763 bytes +2 No edit summary undo

28 August 2018

• curprev 22:0422:04, 28 August 2018 Ev.galois talk contribs 19,761 bytes +214 Attempt to clarify logic behind inseparable irreducible polynomials over a given field. undo

25 August 2018

• curprev 17:0817:08, 25 August 2018 89.39.107.209 talk 19,547 bytes +40 →Separable and inseparable polynomials: Clarify that it concerns the formal derivative undo

2 August 2018

• curprev 03:0603:06, 2 August 2018 Wcherowi talk contribs 19,507 bytes −5 Reverted good faith edits by 174.49.119.109 (talk): Contradicting the source; discuss on talk page. (TW) undo Tag: Undo

1 August 2018

• curprev 21:5821:58, 1 August 2018 174.49.119.109 talk 19,512 bytes +5 Fixed an incorrect statement. The formal derivative of a minimal polynomial of an algebraic element is never zero unless the element itself is zero. The condition that the minimal polynomial’s formal derivative is not zero does not characterize separability. undo Tags: Mobile edit Mobile web edit

9 March 2018

• curprev 10:4910:49, 9 March 2018 Joffysloffy talk contribs m 19,507 bytes −1 →Separable and inseparable polynomials: in the fifth condition: the sum starts at i=0, not i=1. undo

26 January 2018

• curprev 08:4408:44, 26 January 2018 D.Lazard talk contribs 19,508 bytes −3 Reverted good faith edits by 131.215.220.162: The two fomulation are equivalent here (minimal polynomials are irreducible). The simplest formulation is thus better. (TW) undo Tag: Undo
• curprev 04:1004:10, 26 January 2018 131.215.220.162 talk 19,511 bytes +3 No edit summary undo

22 January 2018

• curprev 06:2306:23, 22 January 2018 2a02:908:695:d280:5c35:810:58c0:4619 talk 19,508 bytes −10 Undid revision 821721438 by Special:Contributions/2A02:908:695:D280:5C35:810:58C0:4619 undo Tag: Undo
• curprev 06:2006:20, 22 January 2018 2a02:908:695:d280:5c35:810:58c0:4619 talk 19,518 bytes +10 →Separable and inseparable polynomials undo
• curprev 06:1606:16, 22 January 2018 2a02:908:695:d280:5c35:810:58c0:4619 talk 19,508 bytes +18 →Separable and inseparable polynomials undo

25 December 2017

• curprev 21:5421:54, 25 December 2017 2602:306:c4aa:27d1:bdda:11ef:3818:732b talk 19,490 bytes +10 No edit summary undo

3 October 2017

• curprev 05:4405:44, 3 October 2017 70.29.73.216 talk 19,480 bytes −1 →Separability of transcendental extensions undo

12 June 2017

• curprev 07:3307:33, 12 June 2017 D.Lazard talk contribs 19,481 bytes +71 →Separable and inseparable polynomials: clarifying the proof undo

11 June 2017

• curprev 20:5520:55, 11 June 2017 109.65.94.10 talk 19,410 bytes +20 Fix line of argument re Frobenius map (we want *preimages*, not images of coeffs) undo

6 May 2017

• curprev 06:4006:40, 6 May 2017 126.161.153.149 talk 19,390 bytes +3 →Informal discussion: added a missing "is" undo

4 May 2017

• curprev 23:1923:19, 4 May 2017 Ghseeli talk contribs 19,387 bytes −23 Minor: Reworded an awkward sentence. undo

13 March 2017

• curprev 08:3808:38, 13 March 2017 D.Lazard talk contribs 19,410 bytes −18 →Informal discussion: simpler undo