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Text of the page (random words):
et revision history help article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes atom upload file page information get shortened url switch to legacy parser in other projects wikidata item appearance move to sidebar hide view logs for this page view filter log filter revisions show hide to date tag filter 2017 wikitext editor abba 1 0 addition of protection template to non protected page advanced mobile edit afch android app edit android app edit web antivandal app ai assist app description add app description change app description translate app full source app image add infobox app image add top app rollback app section source app select source app suggested edit app talk reply app talk source app talk topic app undo automatic insertion of extraneous formatting awb barnsworth 1 0 blanking blanking bot in trial bup 2 1 0 campaign external machine translation canned edit summary categories removed cd change of the mentor list changing time or duration citation bot 1 1 0 citation bot 1 2 0 citefix 1 0 citing a blog or free web host coi template removed community configuration condition limit reached content model change content sourced to vanity press contenttranslation contenttranslation needcheck contenttranslation2 contenttranslation high unmodified machine translation usage contest or editathon copyright violation template removed correct typos in one click 1 0 correct typos in one click 1 1 croptool 1 2 croptool 1 4 croptool 1 5 croptool testing 1 0 croptool2 1 0 cs1 fixer 1 0 cvpi cw english converter dab mechanic 1 0 dashboard testing wikiedu org 1 0 dashboard testing wikiedu org 2 0 dashboard wikiedu org 1 0 dashboard wikiedu org 1 2 dashboard wikiedu org 2 0 dashboard wikiedu org 2 2 dashboard wikiedu org 2 3 dashboard wikiedu org account creation dev 1 0 dashboard wikiedu org dev 0 4 11 dashboard wikiedu org dev 0 4 2 dashboard wikiedu org dev 0 4 3 dashboard wikiedu org dev 0 4 4 dashboard wikiedu org dev 0 4 5 dashboard wikiedu org dev 0 4 7 dashboard wikiedu org dev 0 4 8 dashboard wikiedu org dev 0 4 dashboard wikiedu org dev 2 0 dashboard wikiedu org dev 2 1 demo oauthratelimiter 3 1 0 deputy dibabel 1 2 disambiguation links added disambiguation template removed discussiontools hidden tag discussiontools added comment hidden tag discussiontools source hidden tag discussiontools source enhanced hidden tag discussiontools visual hidden tag dispenser 1 0 dispenser 2 4 downstream pull 0 1 draft or userpage link edit check paste shown edit check references activated edit check references declined irrelevant edit check references declined other edit check references declined uncertain edit check references shown edit check tone shown edit requests dashboard 2 0 edit suggestion seen edit suggestion used editcheck newcontent hidden tag editcheck newreference hidden tag editcheck references hidden tag editcheck tone hidden tag edited other user s css edited other user s js editprotectedhelper education dashboard development awight 1 0 elad12390 mediawiki mcp 1 0 english wikipedia account creation assistance tool 2 0 excessive whitespace external link added to disambiguation page extraneous markup featured article or good article template added or removed find link 1 0 fixed lint errors fortress dev 1 0 fountain 0 1 3 fountain test 1 1 gabinaluz app gmail com 1 0 gadget deploy 1 0 geodig 2 0 global mass rollback 1 1 harv or sfn error hotcat huggle iabot 1 0 iabotmanagementconsole personal debug consumer 1 0 iabotmanagementconsole 1 1 iabotmanagementconsole 1 2 iabotmanagementconsole 1 3 image template modification incorrectly formatted external link or image invalid timedtext edit ios app edit ip block appeal jonathan_at_wintr_7 1 0 jwb kenburnseffect tool 1 1 lanternmoss wikipedia maintenance assistant 1 0 large non free file large plot addition large unwikified new article lca tools 1 0 lca tools 1 5 localhost 1 0 manual revert mass pronoun change massmessage delivery massmove md2wiki 2 0 medha_bansal_intern_at_wikiedudashboard 1 0 mentorship module question mentorship panel question missing file added missingredirectsproject 1 0 mobile app edit mobile edit mobile web edit modified by fileimporter movetodraft mtc web for local dev testing 1 0 mtcweb dev 1 0 new redirect new topic new user adding protection template new user modifying archives new user move into mainspace new user moving page out of userspace newcomer task newcomer task copyedit newcomer task expand newcomer task links newcomer task references newcomer task update non autoconfirmed user rapidly reverting edits non english content nowiki added nuke oabot 1 0 oabot 2 1 oauth uploader 1 0 oneclickarchiver ooze outreachdashboard wmflabs org 2 0 outreachdashboard wmflabs org 2 1 pageswap gui pagetriage parliament edits paws 1 2 paws 2 1 paws 2 2 pillbug 1 0 possible ai generated citations possible autobiography or conflict of interest possible birth or death date change possible blp issue or vandalism possible conflict of interest possible cut and paste move or recreation possible formatting issues possible geographic name change possible height and or weight change possible mos ethnicity violation possible prose issues possible self promotion in user or draftspace possible self promotion in userspace possible unexplained content removal possible unreferenced addition to blp possible userspace spam possible vandalism possible wp blpcrime issue possibly inaccurate edit summary proveit edit quickcategories 1 0 quickcategories 1 1 quickcategories 1 2 quickcategories 1 3 rapid date format changes recreated redirect target changed reference list removal references removed removal of category living people removed redirect removing declined unblock request repeated addition of external links by non autoconfirmed user replaced reply reverted reverting anti vandal bot review edit rfc discussion rollback rw saww final 1 0 section blanking sectiontranslation self renaming or bad user talk move shortdesc helper shouting sigcov hunter 1 0 snuggle english wikipedia 1 0 0 speedy deletion template removed suggested add links suggested revise tone suggestor 0 0 1 swviewer 1 0 swviewer 1 2 swviewer 1 3 swviewer 1 4 swviewer 1 6 takedown tools 1 0 talk banner shell conversion talk page blanking text added at end of page teyora development token 1 0 torproxy 0 1 torproxy 0 2 translation dashboard mdwiki1 1 0 twinkle u s congress edit ultraviolet undo unexpected redirect markup unicode language tags unsourced afc submission use of deprecated unreliable source use of predatory open access journal user analysis tool 1 0 very short new article visual edit visual edit check visual edit switched weekipedia v3 1 0 weekipedia2 1 0 wiki file transfer 1 0 wikicontest 1 0a new 1 0 wikieditor hidden tag wikieditorhelper 1 0 wikiedu assignment wizard 2 0 teting 1 0 wikiedu assignment wizard 1 0 wikiedu org assignment design wizard testing 0 99 wikiedu org assignment design wizard 1 0 1 wikiedu org assignment design wizard 1 0 2 wikiedudashboard ntdb 1 2 wikiedudashboard ntdb3 1 0 wikiedudashboard ntdb4 1 0 wikiedudashboard ntdb5 1 0 wikieduwizard ntdb 1 2 wikifile transfer 1 0 wikifile transfer 2 0 wikifile transfer 4 0 wikifile transfer 5 0 wikileaks wikilinks removed wikiloop battlefield wikiloop battlefield dev local 2 0 0 wikiloop battlefield on wmf cloud vps 1 0 wikiloop battlefield prod 2 2 1 beta wikiloop doublecheck toolforge org 5 0 wikiloop doublecheck wmf cloud vps 2020 07 13 version 4 1 0 wikilove wikimonitor 1 0 wikimonitorbeta 1 0 wikipedia mobile apps prototype 1 0 1 wikishield wikishield 1 0 2 wikishield 2 0 0 wikishield 2 0 1 wikishield 2 0 2 wikishield dev 1 0 1 wintr wikiedu dashboard local test 3 1 0 wintr wikiedu wizard local test 1 0 wpcleaner yabbr 1 3 invert selection show revisions external tools find addition removal alternate find edits by user alternate page statistics pageviews fix dead links copyvio detector 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 newest oldest view newer 50 older 50 20 50 100 250 500 8 july 2026 cur prev 20 53 20 53 8 july 2026 jean abou samra talk contribs 22 210 bytes 0 power object update link undo tags mobile edit mobile web edit 25 may 2026 cur prev 15 22 15 22 25 may 2026 maxeto0910 talk contribs 22 210 bytes 1 no sentence undo tag visual edit 21 may 2026 cur prev 11 51 11 51 21 may 2026 tea2min talk contribs 22 211 bytes 95 really fix paste error i hope undo cur prev 11 50 11 50 21 may 2026 tea2min talk contribs 22 116 bytes 94 fix paste error undo cur prev 10 28 10 28 21 may 2026 ranveer singh hobbyist talk contribs m 22 210 bytes 261 added foundational textbook reference mac lane moerdijk to verify definitions regarding presheaves topos theory and power objects undo tags visual edit newcomer task newcomer task references 26 april 2026 cur prev 17 11 17 11 26 april 2026 1234qwer1234qwer4 talk contribs m 21 949 bytes 30 link author garrett birkhoff via wp jwb undo tag jwb 11 april 2026 cur prev 11 53 11 53 11 april 2026 2026 22230 86 temporary account has expired talk 21 919 bytes 2 see also undo cur prev 11 53 11 53 11 april 2026 2026 22230 86 temporary account has expired talk 21 917 bytes 16 see also undo 30 march 2026 cur prev 11 24 11 24 30 march 2026 davie53k talk contribs m 21 901 bytes 169 functors and quantifiers changed math formatting to be more consistent with the rest of the article even though i prefer the look of latex undo cur prev 10 50 10 50 30 march 2026 davie53k talk contribs m 21 732 bytes 4 forgot to make x italic woops undo cur prev 10 49 10 49 30 march 2026 davie53k talk contribs m 21 728 bytes 24 fixed the infobox to be more consistent with the rest of the article for real this time undo cur prev 10 37 10 37 30 march 2026 davie53k talk contribs m 21 704 bytes 10 undid revision 1346176731 by davie53k talk because i realized that the latex mathcal is not the same as the html mathcal will try to figure out how to fix soon undo tag undo cur prev 10 36 10 36 30 march 2026 davie53k talk contribs m 21 714 bytes 10 made the infobox s notation of the power set more consistent with the rest of the article undo tag reverted 2 march 2026 cur prev 13 51 13 51 2 march 2026 lehnekbn talk contribs m 21 704 bytes 0 2 math format typos undo tag visual edit switched 5 february 2026 cur prev 14 44 14 44 5 february 2026 lemondoge talk contribs 21 704 bytes 108 representing subsets as functions accessibility add table caption undo 28 january 2026 cur prev 12 51 12 51 28 january 2026 ldecola talk contribs m 21 596 bytes 3 fixed grammar undo tags mobile edit mobile app edit ios app edit app section source cur prev 12 49 12 49 28 january 2026 ldecola talk contribs m 21 593 bytes 7 fixed grammar undo tags mobile edit mobile app edit ios app edit app section source 23 november 2025 cur prev 03 54 03 54 23 november 2025 gileselig talk contribs 21 600 bytes 392 power object added 2 sources to the first paragraph of the section as the section previously had insufficient citations undo tags visual edit newcomer task newcomer task references 4 november 2025 cur prev 10 25 10 25 4 november 2025 ciapan talk contribs 21 208 bytes 10 undid revision 1320359659 by apersoma talk unnecessary exclusion both the claim and its proof hold for the empty set undo tag undo cur prev 06 01 06 01 4 november 2025 apersoma talk contribs 21 218 bytes 10 properties corrected sentence to exclude the empty set undo tags reverted mobile edit mobile web edit 20 october 2025 cur prev 14 49 14 49 20 october 2025 michaelneuper talk contribs m 21 208 bytes 29 invert image in dark mode undo tag visual edit switched 15 october 2025 cur prev 19 40 19 40 15 october 2025 not cheesewhisk3rs talk contribs m 21 179 bytes 1 fix reference spacing mos refpunct undo tag jwb 22 august 2025 cur prev 12 42 12 42 22 august 2025 ercc2028 talk contribs m 21 180 bytes 0 σ to σ in σ algebra undo tags visual edit mobile edit mobile web edit cur prev 06 16 06 16 22 august 2025 dingolover6969 talk contribs m 21 180 bytes 16 example clean up empty set note firstly it was awkward to read and secondly there s no need to mention the null set which thirdly is also the name for a different thing undo 18 june 2025 cur prev 08 24 08 24 18 june 2025 gert7 talk contribs 21 196 bytes 0 bibliography url is live again undo tag visual edit 23 april 2025 cur prev 08 13 08 13 23 april 2025 citation bot talk contribs 21 196 bytes 61 add publisher date use this bot report bugs suggested by dominic3203 linked from user mathbot most_linked_math_articles ucb_webform_linked 379 1913 undo 13 april 2025 cur prev 18 48 18 48 13 april 2025 2607 fea8 571f f716 2 talk 21 135 bytes 1 functors and quantifiers undo 12 march 2025 cur prev 19 41 19 41 12 march 2025 bagluke talk contribs 21 136 bytes 437 source added undo 11 february 2025 cur prev 09 30 09 30 11 february 2025 anomiebot talk contribs m 20 699 bytes 19 dating maintenance tags unsourced undo cur prev 09 10 09 10 11 february 2025 d lazard talk contribs 20 680 bytes 72 power object disambiguating algebra unsourced section undo 12 november 2024 cur prev 08 54 08 54 12 november 2024 d lazard talk contribs 20 608 bytes 14 wp sdshort undo tag shortdesc helper cur prev 08 51 08 51 12 november 2024 d lazard talk contribs m 20 622 bytes 0 reverted 1 edit by 196 189 127 131 talk to last revision by dingolover6969 undo tags twinkle undo cur prev 06 38 06 38 12 november 2024 196 189 127 131 talk 20 622 bytes 0 updated short description undo tags reverted mobile edit mobile app edit android app edit app description change 22 september 2024 cur prev 23 13 23 13 22 september 2024 dingolover6969 talk contribs 20 622 bytes 21 remove wp again see on talk page undo 11 september 2024 cur prev 17 45 17 45 11 september 2024 161 130 189 197 talk 20 643 bytes 61 in properties section clarified that for a power set to be a commutative monoid under intersection its identity element is the entire ambient set s undo 9 september 2024 cur prev 19 17 19 17 9 september 2024 d lazard talk contribs 20 582 bytes 7 reverted 1 edit by 161 130 189 198 talk both sentences are correct but the change makes wrong the next sentence undo tags twinkle undo cur prev 18 37 18 37 9 september 2024 161 130 189 198 talk 20 575 bytes 7 in properties section changed the power set of a set forms a commutative monoid when considered with the operation of intersection to the power set of a set forms a commutative monoid when considered with the operation of union it is now a true statement set union would need to be the binary operation in this monoid in order for the empty set to be the identity element undo tag reverted 3 april 2024 cur prev 23 34 23 34 3 april 2024 fgnievinski talk contribs 20 582 bytes 31 no edit s...