Proof by contrapositive: Revision history

Filter revisionsshowhide

To date:

Tag filter:

Invert selection

External tools:

For any version listed below, click on its date to view it. For more help, see Help:Page history and Help:Edit summary. (cur) = difference from current version, (prev) = difference from preceding version, m = minor edit, → = section edit, ← = automatic edit summary

curprev 11:1211:12, 30 April 2024‎ Thiagovscoelho talk contribs‎ 52 bytes −4,016‎ ←Redirected page to Contraposition#Proof by contrapositive undo Tag: New redirect

curprev 12:0812:08, 20 April 2024‎ Thiagovscoelho talk contribs‎ 4,068 bytes −9‎ No edit summary undo
curprev 12:0612:06, 20 April 2024‎ Thiagovscoelho talk contribs‎ 4,077 bytes +3‎ No edit summary undo
curprev 12:0512:05, 20 April 2024‎ Thiagovscoelho talk contribs‎ 4,074 bytes +95‎ No edit summary undo

curprev 11:4311:43, 9 February 2024‎ DVdm talk contribs‎ 3,979 bytes +932‎ Reverting edit(s) by Lachim314 (talk) to rev. 1189641295 by PicoMath: Unexplained content removal (RW 16.1) undo Tags: RW Undo
curprev 09:5809:58, 9 February 2024‎ Lachim314 talk contribs‎ 3,047 bytes −932‎ The example was false undo Tags: Reverted section blanking

curprev 03:0403:04, 13 December 2023‎ PicoMath talk contribs‎ 3,979 bytes −28‎ Unnecessary and duplicate link undo Tag: Visual edit

curprev 01:5801:58, 5 October 2023‎ GraziePrego talk contribs‎ 4,007 bytes +39‎ Adding short description: "Logical argument" undo Tag: Shortdesc helper

curprev 18:0118:01, 27 September 2023‎ Citation bot talk contribs‎ 3,968 bytes −32‎ Removed parameters. | Use this bot. Report bugs. | #UCB_CommandLine undo

curprev 12:3212:32, 28 October 2022‎ Cerberus0 talk contribs‎ 4,000 bytes +76‎ →‎Difference with proof by contradiction: Change misleading text. Add links to https://en.wikipedia.org/wiki/Proof_by_contradiction and https://en.wikipedia.org/wiki/Proof_by_contradiction. undo

curprev 15:4115:41, 25 September 2022‎ Invisi-splat talk contribs‎ m 3,924 bytes 0‎ →‎Difference with proof by contradiction: Fixed grammar to clear up description undo Tag: 2017 wikitext editor

curprev 18:4918:49, 3 September 2022‎ Mgkrupa talk contribs‎ 3,924 bytes +24‎ Added {{Mathematical logic}} undo

curprev 05:4205:42, 18 March 2022‎ Citation bot talk contribs‎ 3,900 bytes +4‎ Alter: isbn. Upgrade ISBN10 to 13. | Use this bot. Report bugs. | Suggested by Abductive | #UCB_webform 36/299 undo

curprev 10:4810:48, 9 January 2022‎ Aminmozaffari.s talk contribs‎ 3,896 bytes +35‎ No edit summary undo Tag: Visual edit

curprev 09:4109:41, 13 December 2021‎ Crt talk contribs‎ 3,861 bytes −2‎ Undid revision 1060078554 by 41.78.64.254 (talk) undo Tag: Undo
curprev 09:4009:40, 13 December 2021‎ 41.78.64.254 talk‎ 3,863 bytes +2‎ →‎References undo Tag: Reverted

curprev 09:1709:17, 24 November 2021‎ NFSL2001 talk contribs‎ 3,861 bytes +375‎ No edit summary undo Tag: Visual edit

curprev 12:1412:14, 2 November 2021‎ MrOllie talk contribs‎ 3,486 bytes −274‎ See Wikipedia_talk:WikiProject_Spam#Mass_spam_of_mathvault.ca undo

curprev 10:1110:11, 31 January 2020‎ Joel Brennan talk contribs‎ m 3,760 bytes +76‎ formatting undo

curprev 20:0720:07, 25 November 2019‎ Wcherowi talk contribs‎ 3,684 bytes +4‎ Reverted 1 edit by 106.217.240.233 (talk): Not the name of this article (TW) undo Tag: Undo
curprev 02:0502:05, 25 November 2019‎ 106.217.240.233 talk‎ 3,680 bytes −4‎ No edit summary undo Tags: Mobile edit Mobile web edit
curprev 02:0302:03, 25 November 2019‎ Nick Moyes talk contribs‎ 3,684 bytes −25‎ Reverted 1 edit by 106.217.240.233 (talk) to last revision by Miaumee (TW) undo Tag: Undo
curprev 02:0302:03, 25 November 2019‎ 106.217.240.233 talk‎ 3,709 bytes +25‎ No edit summary undo Tags: Mobile edit Mobile web edit

curprev 01:0001:00, 26 October 2019‎ Miaumee talk contribs‎ 3,684 bytes +788‎ Improved phrasing and flow. Mitigate obscuring/roundabout-sounding sentences. Improved citations. Move the truth table upward so that it's outside the Example section. undo Tag: Visual edit

curprev 19:5519:55, 27 June 2019‎ Wugapodes talk contribs‎ 2,896 bytes +533‎ →‎Example: add truth table undo

curprev 18:1218:12, 15 November 2018‎ Shellwood talk contribs‎ m 2,363 bytes +2‎ Reverted edits by 204.116.222.6 (talk) (HG) (3.4.4) undo Tags: Huggle Rollback
curprev 18:1218:12, 15 November 2018‎ 204.116.222.6 talk‎ 2,361 bytes −2‎ No edit summary undo

curprev 18:5018:50, 16 October 2018‎ ClueBot NG talk contribs‎ m 2,363 bytes +2,346‎ Reverting possible vandalism by 2610:E0:A040:CDFD:41D2:E93A:25BD:315D to version by InternetArchiveBot. Report False Positive? Thanks, ClueBot NG. (3511636) (Bot) undo Tag: Rollback
curprev 18:5018:50, 16 October 2018‎ 2610:e0:a040:cdfd:41d2:e93a:25bd:315d talk‎ 17 bytes −2,346‎ ←Replaced content with 'oh nooooooooooooo' undo Tags: Replaced references removed blanking repeating characters Possible vandalism

curprev 07:3807:38, 2 April 2018‎ InternetArchiveBot talk contribs‎ 2,363 bytes +137‎ Rescuing 1 sources and tagging 0 as dead. #IABot (v1.6.5) undo

curprev 15:1215:12, 29 January 2018‎ Deacon Vorbis talk contribs‎ 2,226 bytes −27‎ Undid revision 808019162 by Dolphin33438 (talk) WP:EGG link; and it's not necessarily being invoked here anyway undo Tag: Undo

curprev 11:3711:37, 31 October 2017‎ Dolphin33438 talk contribs‎ 2,253 bytes +27‎ →‎Example undo

curprev 10:2910:29, 16 September 2017‎ Klbrain talk contribs‎ 2,226 bytes −197‎ Removing stale merge proposal from 2015; no consensus for any merge over 2.5 years; see Talk:Contraposition#Five-way merger discussion undo

curprev 19:0919:09, 19 December 2016‎ Gamall Wednesday Ida talk contribs‎ 2,423 bytes −612‎ →‎Relation to proof by contradiction: unclear and less helpful than the new see also paragraph (an improving it might end up duplicating to much material) undo
curprev 19:0719:07, 19 December 2016‎ Gamall Wednesday Ida talk contribs‎ 3,035 bytes +99‎ →‎See also: -> contradiction undo

curprev 20:4420:44, 21 October 2016‎ Loraof talk contribs‎ 2,936 bytes 0‎ →‎Relation to proof by contradiction: ce undo

curprev 23:2523:25, 4 May 2015‎ Doncram talk contribs‎ 2,936 bytes +197‎ five-way merger proposal undo

curprev 06:4206:42, 16 October 2014‎ Anythingcouldhappen talk contribs‎ 2,739 bytes +2‎ Reverted to revision 618184849 by Monkbot (talk). (TW) undo
curprev 06:4006:40, 16 October 2014‎ 59.88.107.116 talk‎ 2,737 bytes −2‎ →‎Example undo

curprev 22:2722:27, 23 July 2014‎ Monkbot talk contribs‎ m 2,739 bytes −1‎ →‎Example: Task 5: Fix CS1 deprecated coauthor parameter errors undo

curprev 21:1721:17, 5 March 2014‎ Wcherowi talk contribs‎ 2,740 bytes +8‎ →‎top: expand reference, remove deadlink undo

curprev 07:5607:56, 12 July 2013‎ Yobot talk contribs‎ m 2,732 bytes −5‎ clean up, References after punctuation per WP:REFPUNC and WP:CITEFOOT using AWB (9345) undo

curprev 05:0605:06, 9 April 2013‎ InverseHypercube talk contribs‎ 2,942 bytes +165‎ →‎Example undo
curprev 04:5704:57, 9 April 2013‎ InverseHypercube talk contribs‎ 2,777 bytes −358‎ →‎Example: fixing up undo

curprev 10:5310:53, 6 March 2013‎ Daniel5Ko talk contribs‎ m 3,135 bytes 0‎ Reverted nonsense edits. undo

30 April 2024

20 April 2024

9 February 2024

13 December 2023

5 October 2023

27 September 2023

28 October 2022

25 September 2022

3 September 2022

18 March 2022

9 January 2022

13 December 2021

24 November 2021

2 November 2021

31 January 2020

25 November 2019

26 October 2019

27 June 2019

15 November 2018

16 October 2018

2 April 2018

29 January 2018

31 October 2017

16 September 2017

19 December 2016

21 October 2016

4 May 2015

16 October 2014

23 July 2014

5 March 2014

12 July 2013

17 June 2013

9 April 2013

6 March 2013