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Cya stattya ye sirim perekladom z inshoyi movi Mozhlivo vona stvorena za dopomogoyu mashinnogo perekladu abo perekladachem yakij nedostatno volodiye oboma movami Bud laska dopomozhit polipshiti pereklad lyutij 2015 Intuyitivna logika inkoli konstruktivna logika sistema simvolichnoyi logiki yaka vidriznyayetsya vid klasichnoyi logiki zaminyuyuchi tradicijne ponyattya istini ponyattyam konstruktivno dokazovoyi istini Napriklad u klasichnij logici propozicionalni formuli predikati zavzhdi prijmayut znachennya istinnosti z mnozhini dvoh trivialnih elementiv tverdzhen displaystyle top bot istina i hiba vidpovidno nezalezhno vid togo chi ye u nas pryamij dokaz dlya bud yakogo vipadku Navpaki propozicionalnim formulam predikatam v intuyitivnij logici vzagali ne nadayetsya zhodnogo pevnogo znachennya istinnosti natomist voni vvazhayutsya istinnimi lishe todi koli u nas ye pryamij dokaz Zamist formula istinna na osnovi pryamogo dokazu mozhna takozh skazati sho formula en dokazom u sensi Karri Govarda Tomu operaciyi v intuyitivnij logici zberigayut ru shodo dokazu ta dokazovoyi operaciyi a ne ocinki istini Nedovedenim tverdzhennyam v intuyitivnij logici ne nadayutsya promizhni znachennya istinnosti yak inodi pomilkovo stverdzhuyetsya Spravdi mozhna dovesti sho u nih nemaye tretogo znachennya istinnosti sho bulo viznacheno Glivenkom u 1928 Zamist cogo voni zalishayutsya z nevidomim znachennyam istinnosti doti doki voni abo ne dovedeni abo ne sprostovani Tverdzhennya sprostovuyutsya vivodom z nih protirichchya Naslidkom cogo poglyadu ye te sho v intuyitivnoyi logiki nemaye interpretaciyi yak dvoznachnoyi logiki abo navit yak logiki z kincevim znakom Popri te sho intuyitivna logika zberigaye trivialni sudzhennya displaystyle top bot nasliduvani vid klasichnoyi logiki kozhen dokaz propozicionalnoyi formuli vvazhayetsya dopustimim propozicionalnim znachennyam takim chinom za ponyattyam tverdzhennya en pro mnozhini propozicionalni formuli potencijni chi ne kincevi ce mnozhini osobistih dokaziv Semantichno intuyitivna logika ye obmezhennyam klasichnoyi logiki v yakij zakon viklyuchenogo tretogo ta usunennya podvijnogo zaperechennya ne dopuskayutsya yak aksiomi Zakon viklyuchenogo tretogo ta usunennya podvijnogo zaperechennya mozhut vse she buti dovedeni dlya deyakih vislovlyuvan na individualnij osnovi ale ne vikonuvatisya universalno yak voni ce robili z klasichnoyu logikoyu Kilka semantik intuyitivnoyi logiki bulo vivcheno Odna semantika vidbivaye klasichnu en ale vikoristovuye algebru Gejtinga zamist bulevoyi algebri Insha semantika vikoristovuye model Kripke Intuyitivna logika praktichno korisna bo yiyi obmezhennya stvoryuyut dokazi u yakih ye en roblyachi yiyi takozh vidpovidnoyu dlya inshih form matematichnogo konstruktivizmu Neoficijno ce oznachaye sho yaksho u Vas ye konstruktivnij dokaz togo sho ob yekt isnuye to Vi mozhete peretvoriti cej konstruktivnij dokaz v algoritm dlya generaciyi jogo prikladu Formalizovana intuyitivna logika bula spochatku rozroblena Arendom Gejtingom shob zabezpechiti formalnu osnovu dlya programi intuyitivizmu Brauera SintaksisReshitka Rieger Nishimura Yiyi vuzli propozicionalni formuli v odniyeyi zminnoyi do intuyicionistskoyi logichnoyi ekvivalentnosti vporyadkovanoyi intuyicionistskoyu logichnoyu implikaciyeyu Sintaksis formul intuyitivnoyi logiki podibnij logici vislovlyuvan abo logici pershogo poryadku Prote intuyicionistski zv yazki ne viznacheni odin z odnim takim samim chinom yak u klasichnij logici otzhe yih vibir maye znachennya V intuyicionistskij logici prijnyato vikoristovuvati yak osnovni zv yazki rozglyadayuchi A yak skorochennya dlya A V intuyicionistskij logici pershogo poryadku neobhidni obidva kvantora Bagato tavtologij klasichnoyi logiki bilshe ne mozhut dovoditisya v intuyitivnij logici Prikladi vklyuchayut ne lishe zakon viklyuchenogo tretogo p p ale takozh i zakon Pirsa p q p p i navit usunennya podvijnogo zaperechennya U klasichnij logici i p p i takozh p p ye teoremami V intuyitivnij logici lishe dlya pershogo ye teorema podvijne zaperechennya mozhe buti predstavleno ale vono ne mozhe buti usunuto Vidkidannya p p mozhe zdavatisya divnim dlya tih hto bilsh znajomij z klasichnoyu logikoyu ale dokaz ciyeyi propozicionalnoyi formuli v intuyitivnij logici vimagav bi stvorennya dokaziv dlya istinnosti abo hibnosti vsih mozhlivih propozicionalnih formul yaki nemozhlivi dlya ryadu prichin Oskilki bagato klasichnih dijsnih tavtologij ne ye teoremami intuyitivnoyi logiki ale vsi teoremi intuyitivnoyi logiki dijsni klasichno intuyicionizm mozhna rozglyadati yak oslablennya klasichnoyi logiki hocha z velikoyu kilkistyu korisnih vlastivostej Podalshe obchislennya Gergard Gencen viyaviv sho proste obmezhennya jogo sistemi LK jogo podalshe obchislennya dlya klasichnoyi logiki privodit do sistemi yaka ye zvukovoyu ta spovnenoyu shodo intuyitivnoyi logiki Vin nazvav cyu sistemu LJ U LK bud yakomu chislu formul dozvolyayut z yavitisya na storoni ukladennya nastupnogo u vidminnosti LJ dozvolyaye ne bilshe odniyeyi formuli u cij poziciyi Inshi pohidni LK obmezheni intuyicionistskimi pohidnimi ale vse she dozvolyayut bagatorazovi ukladennya v nastupnomu LJ ye odnim z prikladiv Obchislennya stilyu Gilberta Intuyitivna logika mozhe buti viznachena vikoristovuyuchi nastupne obchislennya en Ce shozhe na sposib aksiomatizaciyi klasichnoyi logiki vislovlyuvan U logici vislovlyuvan pravilom visnovku ye modus ponens MP vid ϕ displaystyle phi i ϕ ps displaystyle phi to psi vivodyat ps displaystyle psi Aksiomi logiki vislovlyuvan TODI 1 ϕ x ϕ displaystyle phi to chi to phi TODI 2 ϕ x ps ϕ x ϕ ps displaystyle phi to chi to psi to phi to chi to phi to psi I 1 ϕ x ϕ displaystyle phi land chi to phi I 2 ϕ x x displaystyle phi land chi to chi I 3 ϕ x ϕ x displaystyle phi to chi to phi land chi ABO 1 ϕ ϕ x displaystyle phi to phi lor chi ABO 2 x ϕ x displaystyle chi to phi lor chi ABO 3 ϕ ps x ps ϕ x ps displaystyle phi to psi to chi to psi to phi lor chi to psi HIBA ϕ displaystyle bot to phi Pravila uzagalnennya roblyat ce sistemoyu logiki predikativ pershogo poryadku displaystyle forall GENERAL vid ps ϕ displaystyle psi to phi vivodyat ps x ϕ displaystyle psi to forall x phi yaksho x displaystyle x ne vilnij v ps displaystyle psi displaystyle exists GENERAL vid ϕ ps displaystyle phi to psi vivodyat x ϕ ps displaystyle exists x phi to psi yaksho x displaystyle x ne vilnij v ps displaystyle psi I dodayutsya razom z aksiomami PRED 1 x ϕ x ϕ t displaystyle forall x phi x to phi t yaksho termin t vilnij dlya zamini na zminnu x v ϕ displaystyle phi tobto yaksho niyake viniknennya yakoyi nebud zminnoyi v t ne staye pov yazanim v ϕ t displaystyle phi t PRED 2 ϕ t x ϕ x displaystyle phi t to exists x phi x z tim zhe obmezhennyam sho stosuyetsya PRED 1 Dodatkovi zv yazki Zaperechennya Yaksho Vi hochete vklyuchati z yednuvalnij displaystyle lnot dlya zaperechennya a ne vvazhati jogo skorochennyam dlya ϕ displaystyle phi to bot dostatno dodati NE 1 ϕ ϕ displaystyle phi to bot to lnot phi NE 2 ϕ ϕ displaystyle lnot phi to phi to bot Ye bagato dostupnih alternativ yaksho Vi hochete opustiti z yednuvalnij displaystyle bot hiba Napriklad mozhna zaminiti ci tri aksiomi HIBA NE 1 i NE 2 cimi dvoma aksiomami NE 1 ϕ x ϕ x ϕ displaystyle phi to chi to phi to lnot chi to lnot phi NE 2 ϕ ϕ x displaystyle phi to lnot phi to chi yak v aksiomah alternativnih chislen Alternativi NE 1 ϕ x x ϕ displaystyle phi to lnot chi to chi to lnot phi abo ϕ ϕ ϕ displaystyle phi to lnot phi to lnot phi Ekvivalentnist Z yednuvalnij displaystyle leftrightarrow dlya ekvivalentnosti mozhna rozglyadati yak skorochennya z ϕ x displaystyle phi leftrightarrow chi poznachayetsya ϕ x x ϕ displaystyle phi to chi land chi to phi Alternativno mozhna dodati aksiomi EKVIVALENTNIST 1 ϕ x ϕ x displaystyle phi leftrightarrow chi to phi to chi EKVIVALENTNIST 2 ϕ x x ϕ displaystyle phi leftrightarrow chi to chi to phi EKVIVALENTNIST 3 ϕ x x ϕ ϕ x displaystyle phi to chi to chi to phi to phi leftrightarrow chi EKVIVALENTNIST 1 i EKVIVALENTNIST 2 mozhut pri bazhanni buti ob yednani v yedinu aksiomu ϕ x ϕ x x ϕ displaystyle phi leftrightarrow chi to phi to chi land chi to phi vikoristovuyuchi z yednannya Stavlennya do klasichnoyi logiki Sistema klasichnoyi logiki vihodit shlyahom dodavannya bud yakoyi odniyeyi z nastupnih aksiom ϕ ϕ displaystyle phi lor lnot phi Zakon viklyuchenogo tretogo Mozhe takozh buti sformulovana yak ϕ x ϕ x x displaystyle phi to chi to lnot phi to chi to chi ϕ ϕ displaystyle lnot lnot phi to phi Usunennya podvijnogo zaperechennya ϕ x ϕ ϕ displaystyle phi to chi to phi to phi zakon Pirsa U cilomu mozhna vzyati yak dodatkovu aksiomu bud yaku klasichnu tavtologiyu yaka ne pripustima v dvoelementnomu kadri Kripke displaystyle circ longrightarrow circ inshimi slovami yakij ne vklyuchenij v en Inshe stavlennya viznachayetsya en yakij zabezpechuye vbudovuvannya klasichnoyi logiki pershogo poryadku v intuyitivnu logiku formula pershogo poryadku dokazova v klasichnij logici yaksho i lishe yaksho pereklad Gedelya Gentcena yiyi dovoditsya intuyicionistski Tomu intuyitivna logika zamist cogo mozhe buti rozglyanuta yak zasib rozshirennya klasichnoyi logiki z konstruktivnoyu semantikoyu U 1932 Kurt Gedel viznachiv sistemu logik Gedelya promizhnu mizh klasichnoyu logikoyu ta intuyitivnoyu logikoyu taki logiki vidomi yak en Neviznachenist operatoriv U klasichnij logici vislovlyuvan mozhlivo vzyati odne z kon yunkciyi diz yunkciyi abo implikaciyi yak primitivnih i viznachiti inshi dva z tochki zoru yih razom z zaperechennyam yak v troh aksiomah logiki vislovlyuvan Lukashevicha Navit mozhlivo viznachiti vsi chotiri z tochki zoru yedinogo dostatnogo operatora taki yak strilka Pirsa NOR abo shtrih Shefera NAND Tochnisinko tak samo v klasichnij logici pershogo poryadku odin z kvantoriv mozhe buti viznachenij z tochki zoru inshogo ta zaperechennya Ce istotnij naslidok zakonu dvoznachnosti yakij robit vsi taki zv yazki prostimi bulevimi funkciyami Zakon dvoznachnosti ne mistitsya v intuyitivnij logici lishe zakon superechnosti Vnaslidok zhodna z osnovnih zv yazok ne mozhe obijtisya bez cogo i vsi vishezgadani aksiomi neobhidni Bilshist klasichnih totozhnostej ye lishe teoremami intuyitivnoyi logiki v odnomu napryamku hocha deyaki ye teoremami v oboh napryamkah Voni taki Z yednannya porivnyano z diz yunkciyeyu ϕ ps ϕ ps displaystyle phi wedge psi to neg neg phi vee neg psi ϕ ps ϕ ps displaystyle phi vee psi to neg neg phi wedge neg psi ϕ ps ϕ ps displaystyle neg phi vee neg psi to neg phi wedge psi ϕ ps ϕ ps displaystyle neg phi wedge neg psi leftrightarrow neg phi vee psi Z yednannya porivnyano z implikaciyeyu ϕ ps ϕ ps displaystyle phi wedge psi to neg phi to neg psi ϕ ps ϕ ps displaystyle phi to psi to neg phi wedge neg psi ϕ ps ϕ ps displaystyle phi wedge neg psi to neg phi to psi ϕ ps ϕ ps displaystyle phi to neg psi leftrightarrow neg phi wedge psi Diz yunkciya porivnyano z implikaciyeyu ϕ ps ϕ ps displaystyle phi vee psi to neg phi to psi ϕ ps ϕ ps displaystyle neg phi vee psi to phi to psi Universalna porivnyano z ekzistencialnoyu kvantifikaciyeyu x ϕ x x ϕ x displaystyle forall x phi x to neg exists x neg phi x x ϕ x x ϕ x displaystyle exists x phi x to neg forall x neg phi x x ϕ x x ϕ x displaystyle exists x neg phi x to neg forall x phi x x ϕ x x ϕ x displaystyle forall x neg phi x leftrightarrow neg exists x phi x Tak napriklad a abo b ye silnishoyu propozicionalnoyu formuloyu nizh yaksho ne a to b todi yak voni klasichno vzayemozaminni Z inshogo boku ne a abo b ekvivalentno ne a i takozh ne b Yaksho mi vklyuchayemo ekvivalentnist v spisok zv yazok deyaki zv yazki stayut viznachnimi vid inshih ϕ ps ϕ ps ps ϕ displaystyle phi leftrightarrow psi leftrightarrow phi to psi land psi to phi ϕ ps ϕ ps ps displaystyle phi to psi leftrightarrow phi lor psi leftrightarrow psi ϕ ps ϕ ps ϕ displaystyle phi to psi leftrightarrow phi land psi leftrightarrow phi ϕ ps ϕ ps ϕ displaystyle phi land psi leftrightarrow phi to psi leftrightarrow phi ϕ ps ϕ ps ps ϕ displaystyle phi land psi leftrightarrow phi lor psi leftrightarrow psi leftrightarrow phi Zokrema i Ye povni osnovi intuyicionistskih zv yazok Yak pokazano Oleksandrom Kuznyecovim odna z takih zv yazok persha troyichna druga p yaterichna okremo ye funkcionalno povnimi bud yaka mozhe sluzhiti v roli yedinogo dostatnogo operatora dlya intuyicionistskoyi logiki vislovlyuvan takim chinom formuyuchi analog shtriha Shefera z klasichnoyi logiki vislovlyuvan p q r p q r displaystyle p lor q land neg r lor neg p land q leftrightarrow r p q r s t displaystyle p to q land neg r land s lor t SemantikaSemantika nabagato skladnishe nizh dlya klasichnogo vipadku Teoriya modelej mozhe buti zadana algebroyu Gejtinga abo ekvivalentno semantikoyu Kripke Neshodavno podibna teoriya modelej Tarskogo povnistyu bula dovedena en ale z inshim ponyattyam povnoti nizh u klasichnij Semantika algebri Gejtinga U klasichnij logici mi chasto obgovoryuyemo znachennya istinnosti yaki mozhe vzyati formula Zazvichaj obirayutsya znachennya elementiv bulevoyi algebri Zustrich ta priyednannya do operacij v bulevij algebri ototozhnyuyutsya z i logichnimi zv yazkami tak shob znachennya formuli vidu A B bulo ob yednannyam znachennya A i znachennya B v bulevij algebri Todi u nas ye korisna teorema sho formula ye dopustimim sudzhennyam klasichnoyi logiki yaksho i lishe yaksho yiyi znachennya dorivnyuye 1 dlya kozhnoyi en tobto dlya bud yakogo privlasnennya znachen do yiyi zminnih Vidpovidna teorema virna dlya intuyicionistskoyi logiki ale zamist priznachennya kozhnij formuli znachennya z algebri logiki vikoristovuyetsya znachennya z gejtingovoyi algebri v yakij buleva algebra yavlyaye soboyu osoblivij vipadok Formula dopustima v intuyitivnij logici koli vona otrimuye znachennya verhnogo elementa dlya bud yakoyi ocinki v algebri Gejtinga Mozhna pokazati sho shob rozpiznati dopustimi formuli dostatno rozglyanuti yedinu algebru Gejtinga elementi yakoyi ye vidkritimi pidmnozhinami realnogo ryadka R U cij algebri i operaciyi vidpovidayut naboru peretinu ta ob yednannya i znachennya prisvoyene formuloyu A B ye intervalom AC B vnutrishnya chastina ob yednannya znachennya B i dopovnennya znachennya A Nizhnij element porozhnya mnozhina i vershina ves ryadok R Zaperechennya A formuli A yak zvichajno viznacheno dlya A Znachennya A todi zmenshuyetsya do intervalu AC vnutrishnya chastina dopovnennya znachennya A takozh vidomogo yak zovnishnij viglyad A Za dopomogoyu cih zavdan intuyicionistsko dijsni formuli ce yakraz ti yaki otrimuyut znachennya vsiyeyi liniyi Napriklad formula A A spravedliva nezalezhno vid togo sho mnozhina H vibirayetsya yak znachennya formuli A znachennya A A mozhe buti pokazano yak vsya liniya Znachennya A A interval Znachennya A A C interval znachennya A znachennya A C interval X interval znachennya A C C interval X interval XC C Teorema topologiyi kazhe nam sho interval XC ye pidmnozhinoyu XC takim chinom peretin porozhnij zalishivshi interval C interval R R Takim chinom ocinka ciyeyi formuli istina i dijsno formula dopustima Ale zakon viklyuchenogo tretogo A A yak mozhe zdatisya ye nedijsnim dozvolyayuchi znachennyu A buti y y gt 0 Todi znachennya A mayut vnutrishnyu chastinu y y 0 yaka ye y y lt 0 a znachennya formuli ye ob yednannyam y y gt 0 i y y lt 0 yake ye y y 0 ne vsiyeyu liniyeyu Interpretaciya intuyicionistskoyi dopustimoyi formuli v neskinchennij algebri Gejtinga opisala vishe rezultati u verhnomu elementi predstavlyayuchi istinu yak ocinku formuli nezalezhno vid togo yaki znachennya vid algebri prisvoyeni zminnim formuli I navpaki dlya kozhnoyi nedijsnoyi formuli ye privlasnennya znachen v zminnih yaki dayut ocinku vidminnu vid verhnogo elementa Ni u yakij kincevij algebri Gejtinga nemaye oboh cih vlastivostej Semantika Kripke Dokladnishe Semantika Kripke Pokladayuchis na jogo robotu nad semantikoyu modalnoyi logiki Sol Kripke stvoriv inshu semantiku dlya intuyitivnoyi logiki vidomoyi yak semantika Kripke abo relyacijna semantika Semantika na zrazok semantiki Tarski Bulo viyavleno sho semantika na zrazok Tarski dlya intuyitivnoyi logiki ne bula povnistyu dovedena Odnak en pokazav sho bilsh slabke ponyattya povnoti vse she mistitsya dlya intuyitivnoyi logiki pid podibnoyu modellyu Tarski U comu ponyatti povnoti mi zacikavleni ne z usima operatorami yaki pravilni dlya kozhnoyi modeli a z operatorami yaki takim samim chinom ye istinoyu v kozhnij modeli Tobto yedinij dokaz sho model ocinyuye sho formula istinna povinen buti dopustimim dlya kozhnoyi modeli V comu vipadku isnuye ne lishe dokaz povnoti ale j toj sho diye vidpovidno do intuyicionistskoyi logiki Stavlennya do inshih logik Intuyitivna logika pov yazana dualnistyu z en vidomoyu yak brazilska antiintuyicionistska abo podvijna intuyitivna logika Pidsistema intuyitivnoyi logiki z viddalenoyu nepravdivoyu aksiomoyu vidoma yak minimalna logika Stavlennya do bagatoznachnoyi logiki Kurt Gedel u 1932 pokazav sho intuyitivna logika ne ye bagatoznachnoyu logikoyu Div rozdil pid nazvoyu semantika algebri Gejtinga vishe dlya svogo rodu neskinchenno bagatoznachnoyi logiki interpretaciyi intuyitivnoyi logiki Stavlennya do promizhnih logik Bud yaka kinceva algebra Gejtinga yaka ne ye ekvivalentnoyu bulevoyi algebri viznachaye semantichno en Z inshogo boku zakonnist formul v chistij intuyitivnij logici ne pov yazana z zhodnoyu individualnoyu algebroyu Gejtinga ale stosuyetsya kozhnoyi chastini ta vsiyeyi algebri Gejtinga odnochasno Stavlennya do modalnoyi logiki Bud yaka formula intuyicionistskoyi logiki vislovlyuvan mozhe buti perevedena v modalnu logichnu S4 takim chinom displaystyle bot displaystyle bot A displaystyle A A if A is prime a positive literal displaystyle Box A qquad hbox if A hbox is prime a positive literal A B displaystyle A wedge B A B displaystyle A wedge B A B displaystyle A vee B A B displaystyle A vee B A B displaystyle A rightarrow B A B displaystyle Box A rightarrow B A displaystyle neg A A since A A displaystyle Box neg A qquad hbox since neg A A rightarrow bot i ce prodemonstruvalo sho perekladena formula dopustima v propozicionalnomu modalnomu logichnomu S4 yaksho i lishe yaksho poperedno perekladena formula dopustima v IPC Vishezgadanij nabir formul viklikayetsya en Ye takozh intuyicionistska versiya modalnogo logichnogo S4 pid nazvoyu Konstruktivnij Modalnij Logichnij CS4 Lyambda chislennya Isnuye rozshirenij izomorfizm Karri Govarda IPC i en Primitki Arhiv originalu za 11 veresnya 2018 Procitovano 31 zhovtnya 2014 Proof Theory by G Takeuti ISBN 0 444 10492 5 Alexander Chagrov Michael Zakharyaschev Modal Logic vol 35 of Oxford Logic Guides Oxford University Press 1997 pp 58 59 ISBN 0 19 853779 4 Sorensen Morten Heine B Pawel Urzyczyn 2006 Lectures on the Curry Howard Isomorphism Studies in Logic and the Foundations of Mathematics Elsevier s 42 ISBN 0 444 52077 5 Alfred Tarski Der Aussagenkalkul und die Topologie Fundamenta Mathematicae 31 1938 103 134 1 11 lyutogo 2012 u Wayback Machine Rasiowa Helena Roman Sikorski 1963 The Mathematics of Metamathematics Monografie matematyczne Warsaw Panstwowe Wydawn Naukowe s 385 386 Intuitionistic Logic 26 kvitnya 2021 u Wayback Machine Written by Joan Moschovakis 10 lyutogo 2021 u Wayback Machine Published in Stanford Encyclopedia of Philosophy R Constable M Bickford Intuitionistic completeness of first order logic Annals of Pure and Applied Logic to appear DOI 10 1016 j apal 2013 07 009 Preprint on ArXiv 6 zhovtnya 2016 u Wayback Machine Aoyama Hiroshi 2004 LK LJ Dual Intuitionistic Logic and Quantum Logic Notre Dame Journal of Formal Logic 45 4 193 213 doi 10 1305 ndjfl 1099238445 Levy Michel 2011 Logique modale propositionnelle S4 et logique intuitioniste propositionnelle 4 lyutogo 2014 u Wayback Machine pp 4 5 Natasha Alechina Michael Mendler Valeria de Paiva and Eike Ritter Categorical and Kripke Semantics for Constructive S4 Modal Logic 26 bereznya 2015 u Wayback Machine Div takozhKonstruktivizm matematika DzherelaDirk van Dalen Intuitionistic Logic The Blackwell Guide to Philosophical Logic Goble Lou Blackwell 2001 Morten H Sorensen Pawel Urzyczyn Lectures on the Curry Howard Isomorphism chapter 2 Intuitionistic Logic Studies in Logic and the Foundations of Mathematics vol 149 Elsevier 2006 W A Carnielli A B M Brunner Anti intuitionism and paraconsistency 12 zhovtnya 2008 u Wayback Machine Journal of Applied Logic berezen 2005 T 3 1 S 161 184 PosilannyaJoan Moschovakis Stanford Encyclopedia of Philosophy Intuitionistic Logic 26 kvitnya 2021 u Wayback Machine Nick Bezhanishvili Dick de Jongh Intuitionistic Logic 22 sichnya 2022 u Wayback Machine Saul A Kripke Semantical Analysis of Intuitionistic Logic I 22 lyutogo 2015 u Wayback Machine Dirk van Dalen A S Troelstra P van Ulsen The discovery of E W Beth s semantics for intuitionistic logic 24 veresnya 2015 u Wayback Machine Anthony J Bonner L Thorne McCarty Kumar Vadaparty Expressing Database Queries with Intuitionistic Logic FTP zavantazhennya odnim klikom mishi Tableaux method for intuitionistic logic through S4 translation 4 bereznya 2016 u Wayback Machine perevika intuyicionistskoyi obgruntovanosti propozicionalnih formul zabezpechena komp yuternoyu laboratoriyeyu Grenoblya zasnovane na na sajti playmycode com
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