Partial function: Revision history

20 May 2025

• curprev 16:5916:59, 20 May 2025 Jochen Burghardt talk contribs 15,111 bytes −90 Undid revision 1291265531 by Goodphy (talk): contradicts the terminlogy just introduced ("domain" means S) undo Tag: Undo
• curprev 03:4903:49, 20 May 2025 Goodphy talk contribs 15,201 bytes +90 Helped to understand the definition of partial functions in terms of binary relation. undo Tags: Reverted Visual edit

2 December 2024

• curprev 02:3602:36, 2 December 2024 Homogeneous Cow talk contribs m 15,111 bytes −2 Replace "More technically" with "In other words". The phrasing "More technically" suggested that something was imprecise or non-rigorous about the first definition given. undo

26 October 2024

• curprev 14:4114:41, 26 October 2024 Georgydunaev talk contribs m 15,113 bytes +6 →In category theory undo

25 October 2024

• curprev 19:5119:51, 25 October 2024 Thiagovscoelho talk contribs 15,107 bytes +16 No edit summary undo
• curprev 19:5119:51, 25 October 2024 Thiagovscoelho talk contribs 15,091 bytes +7 No edit summary undo

16 October 2024

• curprev 17:4717:47, 16 October 2024 Jochen Burghardt talk contribs 15,084 bytes +1 Undid dummy edit 1251539483: I agree that without the redirect, there is no need for mentioning (let alone bolding) the notion here undo Tag: Undo
• curprev 17:3317:33, 16 October 2024 JayBeeEll talk contribs 15,083 bytes −1 dummy edit to complete interrupted edit summary: I do not think "there should be some evidence of use before adding a new bolded word to the first paragraph of an article" is an unreasonable standard to apply undo Tag: Reverted
• curprev 17:3117:31, 16 October 2024 JayBeeEll talk contribs 15,084 bytes −111 Restored revision 1250999018 by JayBeeEll (talk): It was made into a redirect only after my first revert, and that redirect has since been (unrelatedly) reverted. I do not think undo Tags: Twinkle Undo

14 October 2024

• curprev 18:0418:04, 14 October 2024 AnomieBOT talk contribs m 15,195 bytes +18 Dating maintenance tags: {{Cn}} undo Tag: Reverted
• curprev 17:4317:43, 14 October 2024 Jochen Burghardt talk contribs 15,177 bytes +93 Partly undid revision 1250999018 by JayBeeEll (talk): unrestricted domain redirects to total function, which in turn redirects here; give a chance to supply a citation for it before deleting the former redirect undo Tag: Reverted

13 October 2024

• curprev 19:5419:54, 13 October 2024 JayBeeEll talk contribs 15,084 bytes −56 Undid revision 1250997369 by Closed Limelike Curves (talk) this is true of only one of the two bolded phrases, but also (1) it does not require it in the first paragraph, and (2) if in fact if the term is not mentioned anywhere in this article then a more plausible conclusion is that the redirect should not exist undo Tag: Undo
• curprev 19:4419:44, 13 October 2024 Closed Limelike Curves talk contribs 15,140 bytes +56 Restored revision 1250986880 by Closed Limelike Curves (talk): WP:RPLA requires us to include this term in bold, as it redirects here undo Tags: Twinkle Undo Reverted
• curprev 19:3919:39, 13 October 2024 JayBeeEll talk contribs 15,084 bytes −56 Reverted 2 edits by Closed Limelike Curves (talk): The purpose of the lead section of an article is to summarize the body; if these terms are significant enough to be placed in the first paragraph of the introduction, then at a minimum one would expect to find them defined and used in the body of the article undo Tags: Twinkle Undo Reverted
• curprev 18:2718:27, 13 October 2024 Closed Limelike Curves talk contribs m 15,140 bytes +23 No edit summary undo Tags: Reverted Visual edit
• curprev 18:2718:27, 13 October 2024 Closed Limelike Curves talk contribs 15,117 bytes +33 Universal domain undo Tags: Reverted Visual edit

24 September 2024

• curprev 18:5118:51, 24 September 2024 JayBeeEll talk contribs 15,084 bytes −13 repair damage of previous edit, which wrongly changed meaning undo
• curprev 10:2610:26, 24 September 2024 Inverse of zero talk contribs m 15,097 bytes +76 →top: Clarified the edited paragraph to be more explicitly and precise in language. undo Tags: Mobile edit Mobile app edit Android app edit App section source

27 August 2024

• curprev 21:0321:03, 27 August 2024 JayBeeEll talk contribs 15,021 bytes +7 Undid revision 1242508094 by FromNeptune (talk) revised version made no sense; maybe moving "to" will be clearer? undo
• curprev 05:0505:05, 27 August 2024 FromNeptune talk contribs 15,014 bytes −7 Fixed definition of a partial function. The previous definition described a total function. undo Tag: Visual edit

28 May 2024

• curprev 04:4604:46, 28 May 2024 Jochen Burghardt talk contribs 15,021 bytes +46 Undid revision 1226028343 by Harry585 (talk): no, f is called a partial function from X to Y undo Tag: Undo
• curprev 04:3304:33, 28 May 2024 Harry585 talk contribs 14,975 bytes −46 Reworded lead to clarify that f is a function from S to Y, NOT a function from X to Y (if S != X) undo Tags: Reverted Visual edit

12 April 2024

• curprev 18:3518:35, 12 April 2024 JayBeeEll talk contribs m 15,021 bytes +2 No edit summary undo

10 April 2024

• curprev 08:5508:55, 10 April 2024 Jochen Burghardt talk contribs 15,019 bytes −26 Undid revision 1218034213 by Defiect (talk): was right before undo Tag: Undo

9 April 2024

• curprev 09:5509:55, 9 April 2024 Defiect talk contribs 15,045 bytes +26 Corrected sentence meaning undo Tags: Reverted Mobile edit Mobile web edit Advanced mobile edit

28 January 2024

• curprev 12:0812:08, 28 January 2024 D.Lazard talk contribs 15,019 bytes −2 →top: this is not here that univalent relations are defined undo
• curprev 01:1001:10, 28 January 2024 Rgdboer talk contribs 15,021 bytes −9 copyedit undo
• curprev 01:0101:01, 28 January 2024 Rgdboer talk contribs m 15,030 bytes +44 →References: cat undo
• curprev 00:3300:33, 28 January 2024 Rgdboer talk contribs 14,986 bytes −56 identify as a Univalent relation undo

15 December 2023

• curprev 17:2817:28, 15 December 2023 JayBeeEll talk contribs m 15,042 bytes −12 Reverted 1 edit by 2001:D08:1392:C2B0:A5A8:CB1D:928B:84F6 (talk) to last revision by PicoMath undo Tags: Twinkle Undo
• curprev 10:5210:52, 15 December 2023 2001:d08:1392:c2b0:a5a8:cb1d:928b:84f6 talk 15,054 bytes +12 No edit summary undo Tags: Reverted Mobile edit Mobile web edit

28 November 2023

• curprev 22:3922:39, 28 November 2023 PicoMath talk contribs 15,042 bytes +26 →Subtraction of natural numbers: subtraction of natural numbers is indeed a partial function. undo Tag: Visual edit

13 October 2023

• curprev 21:3321:33, 13 October 2023 JayBeeEll talk contribs 15,016 bytes +1 Undid revision 1179992068 by Rhosnes (talk) no, the whole phrase is set off undo Tag: Undo
• curprev 19:4919:49, 13 October 2023 Rhosnes talk contribs 15,015 bytes −1 No edit summary undo Tags: Reverted Visual edit Mobile edit Mobile web edit Advanced mobile edit

12 June 2023

• curprev 23:5323:53, 12 June 2023 Viliml talk contribs 15,016 bytes −1 →Basic concepts: As a function is defined on its whole domain, its inverse is always surjective. undo

11 March 2023

• curprev 07:3307:33, 11 March 2023 GünniX talk contribs m 15,017 bytes +7 Double pipe in a link undo

9 March 2023

• curprev 21:3521:35, 9 March 2023 Jochen Burghardt talk contribs 15,010 bytes −38 →References: now in side tab undo
• curprev 19:1219:12, 9 March 2023 Fgnievinski talk contribs 15,048 bytes +24 No edit summary undo Tag: 2017 wikitext editor
• curprev 19:0219:02, 9 March 2023 Fgnievinski talk contribs 15,024 bytes +34 No edit summary undo Tag: 2017 wikitext editor
• curprev 19:0119:01, 9 March 2023 Fgnievinski talk contribs 14,990 bytes +11 No edit summary undo Tag: 2017 wikitext editor

16 December 2022

• curprev 18:0118:01, 16 December 2022 JayBeeEll talk contribs 14,979 bytes −218 →Function spaces: it doesn't matter if it's a definition in the universe, it's just being used locally. (A bigger problem is that *the entire section* is unsourced.) undo
• curprev 13:2213:22, 16 December 2022 AnomieBOT talk contribs m 15,197 bytes +19 Dating maintenance tags: {{Cn}} undo
• curprev 13:0213:02, 16 December 2022 Jochen Burghardt talk contribs 15,178 bytes +231 →Function spaces: require citation that supports (each version of) notation undo

15 December 2022

• curprev 19:2019:20, 15 December 2022 JayBeeEll talk contribs 14,947 bytes +6 Undid revision 1127436695 by 2601:547:501:8F90:413B:B4AA:7440:58B0 (talk) disagree that this was unnecessary undo Tag: Undo
• curprev 08:0708:07, 15 December 2022 Trovatore talk contribs 14,941 bytes +4 →top: there is no *particular* (Goedel number for) a recursive function such that no algo can decide if it's total -- rather, no algo can decide totality correctly for *all* such functions undo
• curprev 07:3607:36, 15 December 2022 Jochen Burghardt talk contribs 14,937 bytes −189 Undid revision 1127445478 by D.Lazard (talk): {A \to B} also denotes a singleton set with A \to B as its only element; this *must* lead to confusion, and hence should not be used unless the majority of textbooks uses it undo Tag: Undo

14 December 2022

• curprev 19:1019:10, 14 December 2022 D.Lazard talk contribs 15,126 bytes +189 →Function spaces: using set builder notation for clarification undo Tag: Reverted
• curprev 18:0818:08, 14 December 2022 2601:547:501:8f90:413b:b4aa:7440:58b0 talk 14,937 bytes −6 →Function spaces: Square brackets unnecessary undo Tag: Reverted

14 August 2022

• curprev 22:0522:05, 14 August 2022 Jmcclaskey54 talk contribs 14,943 bytes −33 eliminated redundancy undo Tags: Mobile edit Mobile web edit Advanced mobile edit
• curprev 21:5921:59, 14 August 2022 Jmcclaskey54 talk contribs 14,976 bytes +13 error corrected undo Tags: Mobile edit Mobile web edit Advanced mobile edit