Bijection: Revision history

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curprev 07:5207:52, 7 October 2026 D.Lazard talk contribs 21,398 bytes −4 Reverted 1 edit by 900 Organization (talk): MOS:MATHLINK undo Tags: Twinkle Undo
curprev 07:0407:04, 7 October 2026 900 Organization talk contribs 21,402 bytes +4 Added relevant link(s) undo Tags: Reverted Visual edit Mobile edit Mobile web edit

curprev 04:5704:57, 2 October 2026 ~2026-53021-59 talk 21,398 bytes 0 Move empty set example into list of mathematical examples (it is vacuously true, it definitely does not belong at the top of the list) undo Tag: Visual edit

curprev 17:0117:01, 1 October 2026 David Eppstein talk contribs 21,398 bytes −4 MOS:MATHLINK undo

curprev 22:1822:18, 15 August 2026 Kri talk contribs 21,402 bytes −146 Moved categories into Category:Bijections undo
curprev 22:1622:16, 15 August 2026 Kri talk contribs 21,548 bytes +24 added Category:Bijections using HotCat undo

curprev 12:3612:36, 1 June 2026 Graham87 talk contribs m 21,524 bytes 0 2 revisions imported: import oldest edits from "BiJection" in the August 2001 database dump undo
curprev 12:2812:28, 1 June 2026 Graham87 talk contribs m 21,524 bytes 0 4 revisions imported: import old edits from "Bijection" in the August 2001 database dump; there may be a gap in available history of a day or so undo
curprev 12:2012:20, 1 June 2026 Graham87 talk contribs m 21,524 bytes 0 1 revision imported: import older August 2001 edit from nost:Bijection undo

curprev 14:4014:40, 23 May 2026 StrangerCoug talk contribs 21,524 bytes +61 Use proper math formatting for consistency with the rest of the introduction undo

curprev 00:2900:29, 1 May 2026 Jamblasted talk contribs m 21,463 bytes 0 Unsure about this change. Definitely 'bold' undo

curprev 14:0814:08, 20 April 2026 ~2026-19673-15Temporary account has expired talk 21,463 bytes +1 →Seats and students of a classroom undo

curprev 09:2209:22, 16 April 2026 Hu.ReedK talk contribs 21,462 bytes +1,459 Added definitions for images and pre-images, added countably infinite sets, added an example of a countably infinite function, and a real-world application of bijectivity undo Tags: Visual edit Edit Check (references) shown Edit Check (paste) shown

curprev 10:2310:23, 23 February 2026 CrazyRaqun talk contribs 20,003 bytes +12 A function is bijective if and only if it is invertible. undo

curprev 15:2115:21, 9 February 2026 Lemondoge talk contribs 19,991 bytes 0 →Gallery: Whoops undo
curprev 15:1815:18, 9 February 2026 Lemondoge talk contribs 19,991 bytes +430 →Gallery: Add alt text to images; use File: instead of the deprecated Image: undo

curprev 09:5909:59, 31 January 2026 ~2026-66954-9Temporary account has expired talk 19,561 bytes +69 Added a trivial example undo Tags: Visual edit Edit Check (references) shown Mobile edit Mobile web edit

curprev 12:3412:34, 14 December 2025 SchlurcherBot talk contribs m 19,492 bytes +2 Bot: http → https undo

curprev 01:3801:38, 22 October 2025 Rgdboer talk contribs 19,490 bytes +135 →More mathematical examples: mult inv on (0,1) undo

curprev 13:2713:27, 20 October 2025 Michaelneuper talk contribs m 19,355 bytes +116 Invert images in dark mode undo

curprev 18:5718:57, 13 October 2025 71.229.185.228 talk 19,239 bytes +12 →Composition: Made typesetting consistent within paragraph undo Tags: Mobile edit Mobile app edit Android app edit App section source

curprev 15:3515:35, 30 September 2025 Crisófilax talk contribs m 19,227 bytes +3 →More mathematical examples undo
curprev 15:2115:21, 30 September 2025 Crisófilax talk contribs 19,224 bytes −14 The previous image has an overly complicated formula and incorrectly state that the bijection is from Z to N instead of from N to Z. undo
curprev 15:0015:00, 30 September 2025 Crisófilax talk contribs m 19,238 bytes −6 A bijection is not a group. undo

curprev 09:0109:01, 28 May 2025 Beland talk contribs m 19,244 bytes +43 MOS:MATHSPECIAL / convert special characters found by Wikipedia:Typo Team/moss (via WP:JWB) undo Tag: JWB

curprev 19:2719:27, 21 May 2025 Farkle Griffen talk contribs m 19,201 bytes −16 MOS:MATH#IFF undo Tags: Mobile edit Mobile app edit iOS app edit App section source
curprev 19:1319:13, 21 May 2025 Farkle Griffen talk contribs m 19,217 bytes +78 Added redirect disambiguation with "one to one function" undo Tags: Mobile edit Mobile app edit iOS app edit App section source

curprev 18:5818:58, 23 March 2025 JayBeeEll talk contribs m 19,139 bytes −1 No edit summary undo

curprev 09:5809:58, 22 March 2025 D.Lazard talk contribs 19,140 bytes +4 Misplaced link to mathematics undo

curprev 22:4322:43, 21 March 2025 109.166.136.27 talk 19,136 bytes +4 No edit summary undo

curprev 03:1603:16, 17 November 2024 2601:640:8100:4f:602b:7848:637a:c9c2 talk 19,132 bytes −3 Fixed typo undo Tags: canned edit summary Mobile edit Mobile app edit iOS app edit App section source
curprev 03:0903:09, 17 November 2024 2601:640:8100:4f:602b:7848:637a:c9c2 talk 19,135 bytes −3 Fixed typo undo Tags: canned edit summary Mobile edit Mobile app edit iOS app edit App section source

curprev 21:2721:27, 3 November 2024 Dolphin51 talk contribs m 19,138 bytes 0 →Seats and students of a classroom: choice of word undo

curprev 08:3108:31, 18 September 2024 D.Lazard talk contribs 19,138 bytes +32 Undid revision 1237344194 by D.Lazard (talk) with a minor modification undo

curprev 09:0309:03, 29 July 2024 D.Lazard talk contribs 19,106 bytes −34 →top: see talk undo

curprev 09:3509:35, 24 May 2024 D.Lazard talk contribs 19,140 bytes +2 →top: grammar: a term is singular and cannot be injective undo
curprev 09:0209:02, 24 May 2024 WinstonWolfie talk contribs m 19,138 bytes +56 Explain the difference between ''one-to-one correspondence'' and ''one-to-one function'' undo

curprev 00:1100:11, 27 April 2024 Jacobolus talk contribs m 19,082 bytes 0 Undid revision 1220957910 by Tickbeat (talk) – the previous version was fine and the "fix" is nonsense undo Tag: Undo
curprev 00:0300:03, 27 April 2024 Tickbeat talk contribs m 19,082 bytes 0 "is mapped to from" is not grammatically correct in this context. undo Tags: Reverted Visual edit

curprev 18:1318:13, 20 January 2024 Oneequalsequalsone talk contribs 19,082 bytes +5 →Composition undo Tag: 2017 wikitext editor

curprev 17:5517:55, 12 January 2024 D.Lazard talk contribs m 19,077 bytes −5 Reverted 1 edit by Sericccus (talk) to last revision by Jacobolus undo Tags: Twinkle Undo
curprev 17:2817:28, 12 January 2024 Sericccus talk contribs m 19,082 bytes +5 "mapped to from" → "mapped to (or from)" undo Tag: Reverted

curprev 05:5505:55, 5 January 2024 Jacobolus talk contribs 19,077 bytes −75 Undid revision 1193704147 by Ada Lovelace Day (talk) – the previous version was accurate, and the replacement is ambiguous undo Tag: Undo
curprev 05:3505:35, 5 January 2024 Ada Lovelace Day talk contribs 19,152 bytes +75 Addressed minor inaccuracies in the summary to make the def. more precise undo Tags: Reverted Visual edit: Switched

curprev 03:0803:08, 29 December 2023 OpalYosutebito talk contribs m 19,077 bytes −9 →Gallery: cleaning up/removing nonexistent parameters using AutoWikiBrowser undo Tag: AWB

curprev 02:5802:58, 4 December 2023 Jacobolus talk contribs m 19,086 bytes +5 removing 'from' here breaks the intended meaning undo Tag: Undo
curprev 02:1302:13, 4 December 2023 BoomerBoxer talk contribs 19,081 bytes 0 revert possible vandalism undo Tags: Manual revert Reverted Mobile edit Mobile web edit
curprev 01:1501:15, 4 December 2023 203.160.91.55 talk 19,081 bytes 0 No edit summary undo Tag: Reverted

curprev 09:3609:36, 3 December 2023 Kumouri talk contribs m 19,081 bytes −5 Remove extra word undo Tags: Reverted Visual edit Mobile edit Mobile web edit Advanced mobile edit

curprev 21:2721:27, 15 November 2023 D.Lazard talk contribs 19,086 bytes −4 →top: typo undo

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