Boundary (topology): Revision history

6 July 2024

• curprev 12:0112:01, 6 July 2024 Multiverse Guy talk contribs m 21,167 bytes +34 →Properties: Making language more consistent. undo

3 December 2023

• curprev 19:4819:48, 3 December 2023 PatrickR2 talk contribs m 21,133 bytes 0 move boundary component to the Definitions section undo

1 December 2023

• curprev 22:1822:18, 1 December 2023 PatrickR2 talk contribs m 21,133 bytes −17 Terms being defined should be in bold where they are defined. undo
• curprev 22:0922:09, 1 December 2023 PatrickR2 talk contribs 21,150 bytes −19 Undid revision 1187615773 by Darcourse (talk) Reverting because no need for citation. The result follows trivially from Definition 2 in the Definitions section undo Tag: Undo
• curprev 22:0722:07, 1 December 2023 PatrickR2 talk contribs 21,169 bytes −19 Undid revision 1187617378 by AnomieBOT (talk) undo Tag: Undo
• curprev 22:0622:06, 1 December 2023 PatrickR2 talk contribs 21,188 bytes −36 Undid revision 1187847922 by Darcourse (talk) Reverting your last statement as incorrect. Please discuss first on the Talk page if desired. undo Tag: Undo
• curprev 20:2320:23, 1 December 2023 Darcourse talk contribs 21,224 bytes +36 →Characterizations and general examples undo Tag: Reverted

30 November 2023

• curprev 10:2710:27, 30 November 2023 AnomieBOT talk contribs m 21,188 bytes +19 Dating maintenance tags: {{Citation needed}} undo Tag: Reverted
• curprev 10:0710:07, 30 November 2023 Darcourse talk contribs 21,169 bytes +19 →Characterizations and general examples undo Tag: Reverted

23 November 2023

• curprev 06:2506:25, 23 November 2023 Greg at Higher Math Help talk contribs m 21,150 bytes +81 →See also: Exterior (topology) redirects to Interior (topology), so the annotated link template supplies the wrong description; replaced it with a wikilink plus a manual description undo

11 March 2023

• curprev 03:2503:25, 11 March 2023 PatrickR2 talk contribs m 21,069 bytes −72 →Characterizations and general examples: minor streamlining undo

15 December 2022

• curprev 12:3712:37, 15 December 2022 WildStar talk contribs 21,141 bytes −18 Undid revision 1127542562 by 73.53.56.224 (talk) – Created template error; not a typo fix undo Tag: Undo
• curprev 08:5908:59, 15 December 2022 73.53.56.224 talk 21,159 bytes +18 →top: Fixed typo undo Tags: Reverted canned edit summary Mobile edit Mobile app edit Android app edit

16 November 2022

• curprev 13:1713:17, 16 November 2022 ಮಲ್ನಾಡಾಚ್ ಕೊಂಕ್ಣೊ talk contribs m 21,141 bytes +9 Fixed Lint errors undo

13 October 2022

• curprev 16:5416:54, 13 October 2022 77.167.132.27 talk 21,132 bytes 0 →Common definitions undo

13 August 2022

• curprev 07:2907:29, 13 August 2022 TakuyaMurata talk contribs m 21,132 bytes 0 typo undo
• curprev 07:2807:28, 13 August 2022 TakuyaMurata talk contribs m 21,132 bytes −4 →top undo
• curprev 07:2707:27, 13 August 2022 TakuyaMurata talk contribs m 21,136 bytes −4 →top undo
• curprev 07:2707:27, 13 August 2022 TakuyaMurata talk contribs 21,140 bytes +44 locally closed subset undo

10 July 2022

• curprev 03:1003:10, 10 July 2022 PointlessUsername talk contribs 21,096 bytes −21 Undid revision 1097239371 by PointlessUsername (talk) dab no longer needed undo Tag: Undo

9 July 2022

• curprev 14:3814:38, 9 July 2022 PointlessUsername talk contribs 21,117 bytes +21 →Properties: dab undo Tags: Reverted Visual edit

20 May 2022

• curprev 11:0411:04, 20 May 2022 Hellacioussatyr talk contribs 21,096 bytes +35 →Examples undo Tags: Mobile edit Mobile web edit Advanced mobile edit

15 May 2022

• curprev 18:2018:20, 15 May 2022 OlliverWithDoubleL talk contribs m 21,061 bytes +14 No edit summary undo Tags: Mobile edit Mobile app edit iOS app edit
• curprev 18:1318:13, 15 May 2022 OlliverWithDoubleL talk contribs 21,047 bytes +51 added math formatting, short description (fix as needed, not an expert) undo Tags: Mobile edit Mobile app edit iOS app edit

22 April 2022

• curprev 19:5319:53, 22 April 2022 2607:b400:26:0:b174:70a9:ee35:917a talk 20,996 bytes +3 I deleted part of the first sentence on this page, which I think is incorrect. It says boundary "is the set of points which can be approached both from S and from the outside of S." I think this is incorrect. Consider a line segment inside a circle. Let set S contain the points inside the circle, excluding the line segment. In this case, the line segment is an "internal" boundary of S. But using the incorrect definition, it would not be a boundary of S. undo
• curprev 19:4619:46, 22 April 2022 2607:b400:26:0:b174:70a9:ee35:917a talk 20,993 bytes −115 I deleted part of the first sentence on this page, which I think is incorrect. undo

29 October 2021

• curprev 06:3906:39, 29 October 2021 Myvh773 talk contribs m 21,108 bytes +13 →Examples: Added converse for dense open set undo

16 September 2021

• curprev 15:2315:23, 16 September 2021 Arjayay talk contribs m 21,095 bytes −1 an > a undo

21 July 2021

• curprev 13:0013:00, 21 July 2021 Mohanst97 talk contribs m 21,096 bytes +6 Changed a possible typo (U was used in some places instead of S) undo Tag: Visual edit

12 July 2021

• curprev 00:4400:44, 12 July 2021 Mgkrupa talk contribs m 21,090 bytes +19 Copy editing undo
• curprev 00:4300:43, 12 July 2021 Mgkrupa talk contribs m 21,071 bytes 0 Copy editing undo
• curprev 00:4100:41, 12 July 2021 Mgkrupa talk contribs 21,071 bytes +153 Clarification undo
• curprev 00:4000:40, 12 July 2021 Mgkrupa talk contribs 20,918 bytes +161 Added comment undo
• curprev 00:3500:35, 12 July 2021 Mgkrupa talk contribs 20,757 bytes +231 Copy editing to make this article more compliant with MOS:MATH and Wikipedia:Manual of Style/Accessibility. Reorganized, reworded, and clarified some information. undo
• curprev 00:2900:29, 12 July 2021 Mgkrupa talk contribs m 20,526 bytes +13 Reworded undo
• curprev 00:2500:25, 12 July 2021 Mgkrupa talk contribs 20,513 bytes +107 →Boundary of an open ball vs. its surrounding sphere undo
• curprev 00:1100:11, 12 July 2021 Mgkrupa talk contribs 20,406 bytes +366 Copy editing to make this article more compliant with MOS:MATH and Wikipedia:Manual of Style/Accessibility. Reorganized, reworded, and clarified some information. undo

11 July 2021

• curprev 22:1322:13, 11 July 2021 Arjayay talk contribs m 20,040 bytes −4 Duplicate word removed undo

10 July 2021

• curprev 02:4302:43, 10 July 2021 Mgkrupa talk contribs m 20,044 bytes +51 Clarification undo
• curprev 02:4002:40, 10 July 2021 Mgkrupa talk contribs m 19,993 bytes +18 Fix undo
• curprev 00:5100:51, 10 July 2021 Mgkrupa talk contribs m 19,975 bytes +23 Added template undo
• curprev 00:4600:46, 10 July 2021 Mgkrupa talk contribs m 19,952 bytes 0 Reorganized undo
• curprev 00:4500:45, 10 July 2021 Mgkrupa talk contribs m 19,952 bytes +2 Fix undo
• curprev 00:4300:43, 10 July 2021 Mgkrupa talk contribs m 19,950 bytes +42 Fix undo
• curprev 00:4200:42, 10 July 2021 Mgkrupa talk contribs 19,908 bytes +558 Added information undo
• curprev 00:2500:25, 10 July 2021 Mgkrupa talk contribs 19,350 bytes +441 Added proof undo
• curprev 00:1900:19, 10 July 2021 Mgkrupa talk contribs 18,909 bytes +2,440 Reorganized, reworded, and added information undo

9 July 2021

• curprev 23:2623:26, 9 July 2021 Mgkrupa talk contribs m 16,469 bytes +19 Clarification undo
• curprev 23:2423:24, 9 July 2021 Mgkrupa talk contribs 16,450 bytes +194 Fix and copy editing undo
• curprev 23:1623:16, 9 July 2021 Mgkrupa talk contribs m 16,256 bytes +377 Reworded, clarified, and added information