Klein bottle: Revision history

1 August 2024

• curprev 18:1218:12, 1 August 2024‎ 35.139.154.158 talk‎ 20,933 bytes −401‎ Undid revision 1237956342 by JustAMonoid (talk) not well explained, and essentially duplicates the construction via a cylinder anyway undo Tag: Undo
• curprev 10:1310:13, 1 August 2024‎ JustAMonoid talk contribs‎ 21,334 bytes +401‎ Add another description of the Klein bottle construction undo Tag: Reverted

19 May 2024

• curprev 04:2204:22, 19 May 2024‎ BillHPike talk contribs‎ 20,933 bytes +33‎ added Category:Eponyms in geometry using HotCat undo

2 April 2024

• curprev 01:2801:28, 2 April 2024‎ David Eppstein talk contribs‎ 20,900 bytes −144‎ →‎Homotopy classes: rm unsourced and unexplained claim undo

17 January 2024

• curprev 21:5921:59, 17 January 2024‎ Mazewaxie talk contribs‎ m 21,044 bytes 0‎ WP:GENFIXES undo Tag: AWB

6 November 2023

• curprev 18:2218:22, 6 November 2023‎ D.Lazard talk contribs‎ 21,044 bytes −43‎ Reverted 1 edit by Nandor72 (talk): Do not edit war. If somebody disagree with your edit, you must discuss on the talk page of the article in view of a consensus. Please do not comment on the supposed competence of other editors. This is WP:persnal attacks, that are forbidden on Wikipedia. undo Tags: Twinkle Undo
• curprev 17:1617:16, 6 November 2023‎ Nandor72 talk contribs‎ 21,087 bytes +43‎ Undid revision 1181811781 by D.Lazard (talk) I don't think you understand the concept of 3-dimensional, because absolutely NO ONE would say that a mug is 2-dimensional. Look in a math book. A Klein bottle is 4-dimensional, and any 3D representation is just that – a representation only. The man who MAKES those glass ones calls them 3D immersions! It is NOT pedantics; it is truth – there's a big difference between 3D and 4D. undo Tags: Undo Reverted

25 October 2023

• curprev 10:4410:44, 25 October 2023‎ D.Lazard talk contribs‎ 21,044 bytes −43‎ Undid revision 1180975791 by Nandor72 (talk) Misplaced (and wrong) pedantry (nobody is saying that he trinks in a 3D coffee mug) undo Tags: Undo Reverted
• curprev 09:1809:18, 25 October 2023‎ KVandermeersch talk contribs‎ 21,087 bytes +190‎ →‎Properties: added that the fundamental group is the nontrivial semidirect product of Z with itself undo

20 October 2023

• curprev 01:2501:25, 20 October 2023‎ Nandor72 talk contribs‎ 20,897 bytes +43‎ Undid revision 1162452865 by Aza24 (talk) If I DID want to be pedantic, I would have gone through the trouble of saying that it is NOT a 2D object, but it is a 2D manifold only able to represented in a 4D or higher space, making it a 4D OBJECT. It is the same with a Möbius Strip, which is MADE of a 2D manifold, but the Möbius strip itself is a 3D object. A circle is made from a 1D manifold, but it is a 2D object. A Klein Bottle IS a 4D object. undo Tags: Undo Reverted

25 September 2023

• curprev 03:4703:47, 25 September 2023‎ Lovemath13 talk contribs‎ m 20,854 bytes +2‎ Fixed grammar in a sentece undo Tag: Visual edit

1 September 2023

• curprev 12:3512:35, 1 September 2023‎ Alexballoon talk contribs‎ 20,852 bytes +3‎ No edit summary undo

21 August 2023

• curprev 15:4515:45, 21 August 2023‎ Anachronist talk contribs‎ 20,849 bytes 0‎ →‎4-D non-intersecting: if you're going to fix a typo, don't compound the error undo
• curprev 06:5106:51, 21 August 2023‎ 2a01:cb0c:cd:d800:470:9d02:cb5c:2284 talk‎ 20,849 bytes +1‎ →‎Parametrization: typo undo

20 August 2023

• curprev 13:1813:18, 20 August 2023‎ 89.177.38.195 talk‎ 20,848 bytes +6‎ →‎4-D non-intersecting: epsilon -> varepsilon for consistency with text below undo Tags: Mobile edit Mobile web edit

19 August 2023

• curprev 01:5001:50, 19 August 2023‎ GreenC bot talk contribs‎ 20,842 bytes −30‎ Removed 1 archive link. Wayback Medic 2.5 undo

29 June 2023

• curprev 08:1408:14, 29 June 2023‎ Aza24 talk contribs‎ m 20,872 bytes +8‎ upd name undo

28 June 2023

• curprev 19:0019:00, 28 June 2023‎ 35.139.154.158 talk‎ 20,864 bytes −43‎ Undid revision 1162351926 by Nandor72 (talk) if you want to get pedantic, a Klein bottle is two dimensional, not four....but I don't think we really need to get pedantic here undo Tags: Undo Reverted
• curprev 15:1415:14, 28 June 2023‎ Nandor72 talk contribs‎ 20,907 bytes +43‎ No such thing as a 3-D Klein bottle. Glass models of Klein bottles, like those made by Cliff Stoll and Alan Bennett, are 3-D representations of Klein bottles. undo Tag: Reverted

6 June 2023

• curprev 09:0209:02, 6 June 2023‎ Koavf talk contribs‎ 20,864 bytes +32‎ added Category:1882 introductions using HotCat undo

5 May 2023

• curprev 17:2317:23, 5 May 2023‎ ComplexRational talk contribs‎ m 20,832 bytes −1‎ →‎Klein surface: -sp undo

13 April 2023

• curprev 00:2700:27, 13 April 2023‎ Anachronist talk contribs‎ m 20,833 bytes +16‎ →‎Properties: this name is linked only in the lead and needs to be somewhere in the body undo

26 March 2023

• curprev 00:1200:12, 26 March 2023‎ Tamfang talk contribs‎ 20,817 bytes −11‎ →‎Properties: not necessary, as the 8-ring illustrates undo

19 March 2023

• curprev 17:3217:32, 19 March 2023‎ 35.139.154.158 talk‎ 20,828 bytes −372‎ Undid revision 1145512638 by DavidWBrooks (talk) sigh undo Tags: Undo references removed
• curprev 14:3914:39, 19 March 2023‎ DavidWBrooks talk contribs‎ 21,200 bytes +372‎ let's try this again ... undo Tag: Reverted

17 March 2023

• curprev 19:2119:21, 17 March 2023‎ 35.139.154.158 talk‎ 20,828 bytes −137‎ while we're at it...the second image really doesn't provide anything beyond the first one and just cuts into the next section...also fixing the sizing of the first and a little bit of wording tweaking to the last sentence of the intro undo
• curprev 19:0219:02, 17 March 2023‎ 35.139.154.158 talk‎ 20,965 bytes −125‎ Undid revision 1145130614 by DavidWBrooks (talk) not illustrative of anything in the article, also misleading in terms of what a Klein bottle actually is...any old piece of glass could be reshaped to have a pouch that holds water, and this fact is irrelevant undo Tag: Undo
• curprev 12:5612:56, 17 March 2023‎ DavidWBrooks talk contribs‎ 21,090 bytes +125‎ add photo of Klein bottle holding liquid undo Tag: Reverted

16 March 2023

• curprev 19:0019:00, 16 March 2023‎ D.Lazard talk contribs‎ 20,965 bytes +75‎ →‎top: reordering for being less technical undo
• curprev 16:4816:48, 16 March 2023‎ D.Lazard talk contribs‎ 20,890 bytes −214‎ removing almost all {{fact}} and replacing them by one link to ref 4. in each section. Rm {{refimprove}} undo
• curprev 15:2415:24, 16 March 2023‎ D.Lazard talk contribs‎ 21,104 bytes −6‎ →‎Sources: ce undo
• curprev 15:1415:14, 16 March 2023‎ D.Lazard talk contribs‎ 21,110 bytes −10‎ →‎Construction: in this description, the self-intersection is not a circle. For the remainder of the paragraph WP:CALC applies here, as the validation of the construction is a direct application of the linked definitions. undo
• curprev 15:0415:04, 16 March 2023‎ D.Lazard talk contribs‎ 21,120 bytes −26‎ →‎top: “topology” is too restrictive, as the Klein bottle is defined and considered in differential geometry and algebraic geometry undo

15 March 2023

• curprev 21:0521:05, 15 March 2023‎ 35.139.154.158 talk‎ 21,146 bytes −153‎ Undid revision 1144243498 by DavidWBrooks (talk) in the mean time, this is mathematically nonsensical...restoring to stable version undo Tag: Undo

12 March 2023

• curprev 16:5416:54, 12 March 2023‎ DavidWBrooks talk contribs‎ 21,299 bytes +153‎ give a shot at an intro sentence understandable to the casual reader undo Tag: Reverted
• curprev 16:1516:15, 12 March 2023‎ 2a02:908:1996:da0:1894:ce73:8f62:653 talk‎ 21,146 bytes +23‎ No edit summary undo Tags: Visual edit Mobile edit Mobile web edit

23 January 2023

• curprev 12:2412:24, 23 January 2023‎ 128.41.20.87 talk‎ 21,123 bytes +1‎ Citation footnote. undo Tag: Visual edit

25 December 2022

• curprev 21:2921:29, 25 December 2022‎ D.Lazard talk contribs‎ 21,122 bytes +12‎ →‎3D pinched torus / 4D Möbius tube: fixing a link undo
• curprev 19:2219:22, 25 December 2022‎ 71.183.110.20 talk‎ 21,110 bytes +14‎ →‎3D pinched torus / 4D Möbius tube: Pinch point (mathematics) undo
• curprev 19:2119:21, 25 December 2022‎ 71.183.110.20 talk‎ 21,096 bytes +4‎ →‎3D pinched torus / 4D Möbius tube: pinch point undo Tag: Disambiguation links added

27 November 2022

• curprev 23:4423:44, 27 November 2022‎ Citation bot talk contribs‎ 21,092 bytes −343‎ Alter: pages, url. URLs might have been anonymized. Formatted dashes. | Use this bot. Report bugs. | Suggested by Whoop whoop pull up | #UCB_webform 309/3540 undo

24 November 2022

• curprev 17:4817:48, 24 November 2022‎ 109.70.40.55 talk‎ 21,435 bytes +18‎ No edit summary undo

17 November 2022

• curprev 14:1514:15, 17 November 2022‎ Javier Alejandro Herrera Carvajal talk contribs‎ m 21,417 bytes +738‎ →‎Klein surface: Citation added undo Tag: Visual edit

5 November 2022

• curprev 20:4520:45, 5 November 2022‎ 2601:19e:4180:6d50::cc3a talk‎ 20,679 bytes −149‎ generic link--does this mention Klein bottle anywhere? Undid revision 1120216543 by Myakubu123456 (talk) undo Tags: Undo references removed
• curprev 20:1420:14, 5 November 2022‎ Myakubu123456 talk contribs‎ 20,828 bytes +149‎ →‎Properties: added citation undo Tags: Reverted Visual edit

26 October 2022

• curprev 17:4517:45, 26 October 2022‎ SBareSSomErMig talk contribs‎ 20,679 bytes −52‎ Removed a couple of "citation needed"-tags where there was either already a citation, or the claim was proved in the very same sentence as it was made. undo
• curprev 17:0617:06, 26 October 2022‎ Cehmann99 talk contribs‎ 20,731 bytes −26‎ No edit summary undo Tag: Visual edit: Switched
• curprev 17:0517:05, 26 October 2022‎ Cehmann99 talk contribs‎ 20,757 bytes +224‎ added citation undo Tag: Visual edit

28 June 2022

• curprev 16:4816:48, 28 June 2022‎ Mgkrupa talk contribs‎ 20,533 bytes +69‎ Added {{Manifolds}} undo

25 June 2022

• curprev 13:0113:01, 25 June 2022‎ AndyFielding talk contribs‎ m 20,464 bytes −24‎ No edit summary undo Tags: Visual edit Mobile edit Mobile web edit Advanced mobile edit