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U Vikipediyi ye statti pro inshi znachennya cogo termina Rerajting media U matematici komp yuternij nauci ta v logici termin rerajting angl rewriting oznachaye shirokij diapazon sposobiv potencijno ne determinovanih zamini elementiv formuli takim chinom sho zmist ne minyayetsya U samomu bazovomu viglyadi sistemi rerajtinga skladayutsya z naboru ob yektiv plyus vidnosin pro te yak peretvoriti ci ob yekti Rerajting mozhe buti nedeterminovanim Odne pravilo rerajtinga termu mozhe zastosovuvatisya bagatma riznimi sposobami do cogo termu abo mozhe buti zastosovano bilshe odnogo pravila Todi sistemi rerajtinga ne zabezpechuyut algoritm zmini odnogo termu na inshij ale zabezpechuyut nabir mozhlivih pravil programi Prote u poyednanni z vidpovidnim algoritmom sistemi rerajtinga mozhut rozglyadatisya yak komp yuterni programi na rerajtingu termiv zasnovano dekilka sistem dovedennya teorem 1 ta deklarativnih mov programuvannya 2 3 Zmist 1 Intuyitivni prikladi 1 1 Logika 1 2 Lingvistika 2 Tipi sistem rerajtinga 2 1 Abstraktni sistemi rerajtinga 2 2 Ryadkovi sistemi rerajtinga 2 3 Sistemi rerajtingu termiv 2 4 Sistemi rerajtinga slidiv 3 Filosofiya 4 Div takozh 5 Podalshe chitannya 6 PrimitkiIntuyitivni prikladi RedaguvatiLogika Redaguvati U logici procedura oderzhannya formuli kon yunktivnoyi normalnoyi formi KNF mozhe buti zruchno napisana za dopomogoyu sistemi rerajtinga 4 Pravila takoyi sistemi budut A A displaystyle neg neg A to A nbsp Podvijne zaperechennya A B A B displaystyle neg A land B to neg A lor neg B nbsp Zakon de Morgana A B A B displaystyle neg A lor B to neg A land neg B nbsp A B C A C B C displaystyle A land B lor C to A lor C land B lor C nbsp Distributivnist A B C A B A C displaystyle A lor B land C to A lor B land A lor C nbsp de simvol displaystyle to nbsp vkazuye na te sho zmist livoyi chastini mozhe buti podanij yak rerajting u pravij chastini Lingvistika Redaguvati U lingvistici pravila rerajtinga yaki takozh nazivayutsya pravilami frazovoyi strukturi vikoristovuyutsya v deyakih sistemah generativnoyi gramatiki yak zasib generuvannya gramatichno pravilnih rechen movi Take pravilo zazvichaj prijmaye formu A X de A ye mitkoyu sintaksichnoyi kategoriyi napriklad imennikom abo rechennyam a X ye poslidovnistyu takih mitok abo morfem sho virazhaye toj fakt sho A mozhe buti zaminenij na X pri generuvanni skladovoyi strukturi rechennya Napriklad pravilo S NP VP oznachaye sho propoziciya mozhe skladatisya z imennika sho suprovodzhuyetsya diyeslovom podalshi pravila vkazuyut z yakih subkomponentiv mozhut skladatisya imennik ta diyeslovo i tak dali Tipi sistem rerajtinga RedaguvatiAbstraktni sistemi rerajtinga Redaguvati Z navedenih vishe prikladiv zrozumilo sho mi mozhemo dumati pro perepisuvannya sistem abstraktno Potribno vkazati nabir ob yektiv ta pravila yaki mozhut buti zastosovani dlya yih peretvorennya Najbilsh zagalna odnoznachna ustanovka cogo ponyattya nazivayetsya abstraktnoyu sistemoyu skorochennya angl ARS hocha ostannim chasom avtori vikoristovuyut abstraktnu sistemu rerajtinga 5 ARS ce prosto nabir A elementi yakogo nazivayutsya ob yektami ta razom z binarnim vidnoshennyam na A tradicijno poznachayutsya i nazivayutsya vidnoshennyam zmenshennya vidnoshennyam rerajtinga 5 abo prosto zmenshennyam 6 Priklad Pripustimo sho nabir ob yektiv T a b c i binarne spivvidnoshennya zadano pravilami a b b a a c i b c Zauvazhte sho ci pravila mozhut buti zastosovani yak do a tak i do b shob otrimati term c Taka vlastivist yavno vazhliva Zauvazhte takozh sho c ye v pevnomu sensi najprostishim termom u sistemi oskilki nichogo ne mozhe buti zastosovano do c shob peretvoriti jogo dali Cej priklad vede nas do viznachennya deyakih vazhlivih ponyat u zagalnomu nalashtuvanni ARS 7 displaystyle stackrel rightarrow nbsp ce tranzitivne zamikannya displaystyle rightarrow cup nbsp de ye vidnoshennya rivnosti tobto displaystyle stackrel rightarrow nbsp ye najmenshim peredporyadkom refleksivnim i tranzitivnim vidnoshennyam sho mistit displaystyle rightarrow nbsp Jogo takozh nazivayut refleksivnim tranzitivnim zamikannyam displaystyle rightarrow nbsp displaystyle leftrightarrow nbsp ce 1 displaystyle rightarrow cup xrightarrow 1 nbsp sho ye ob yednannyam spivvidnoshennya displaystyle rightarrow nbsp z jogo zvorotnim spivvidnoshennyam takozh vidomim yak simetrichne zamikannya displaystyle rightarrow nbsp displaystyle stackrel leftrightarrow nbsp ce tranzitivne zamikannya displaystyle leftrightarrow cup nbsp de displaystyle stackrel leftrightarrow nbsp ye najmenshim vidnoshennyam ekvivalentnosti sho mistit displaystyle rightarrow nbsp Vin takozh vidomij yak refleksivne tranzitivne simetrichne zamikannya displaystyle rightarrow nbsp Ryadkovi sistemi rerajtinga Redaguvati Ryadkova sistema rerajtinga angl SRS takozh vidoma yak sistema semi Thue vikoristovuye vilnu monoyidnu strukturu ryadkiv sliv nad alfavitom shob rozshiriti vidnoshennya rerajtinga R displaystyle R nbsp dlya vsih ryadkiv u alfaviti sho mistyat livu i vidpovidno pravu storonu deyakih pravil yak pidryadka Formalno semi Thue sistemi ce para S R displaystyle Sigma R nbsp de S displaystyle Sigma nbsp najchastishe kincevij alfavit a R displaystyle R nbsp ce binarne vidnoshennya mizh deyakimi fiksovanimi strokami v alfaviti sho nazivayutsya pravilami rerajtinga Odnokrokove vidnoshennya rerajtinga vidnosini R displaystyle xrightarrow R nbsp viklikanoyi R displaystyle R nbsp na S displaystyle Sigma nbsp viznachayetsya tak dlya bud yakih strok s t S displaystyle s t in Sigma nbsp s R t displaystyle s xrightarrow R t nbsp yaksho i tilki yaksho ye x y u v S displaystyle x y u v in Sigma nbsp taki sho s x u y displaystyle s xuy nbsp t x v y displaystyle t xvy nbsp i u R v displaystyle uRv nbsp Tak yak R displaystyle xrightarrow R nbsp ye vidnoshennyam na S displaystyle Sigma nbsp para S R displaystyle Sigma xrightarrow R nbsp pidhodit do viznachennya abstraktnoyi sistemi rerajtinga Ochevidno sho R displaystyle R nbsp ye pidmnozhinoyu z R displaystyle xrightarrow R nbsp Yaksho vidnoshennya R displaystyle R nbsp ye simetrichnim todi sistema nazivayetsya sistemoyu Thue U SRS vidnoshennya skorochennya R displaystyle xrightarrow R nbsp sumisne z monoyidnoyu operaciyeyu sho oznachaye sho z x R y displaystyle x xrightarrow R y nbsp vitikaye u x v R u y v displaystyle uxv xrightarrow R uyv nbsp dlya usih ryadkiv x y u v S displaystyle x y u v in Sigma nbsp Analogichnim chinom refleksivne tranzitivne simetrichne zamikannya R displaystyle xrightarrow R nbsp poznachene R displaystyle overset underset R leftrightarrow nbsp ye kongruentnist tobto vona ye vidnoshennyam ekvivalentnosti za viznachennyam i takozh sumisna z konkatenaciyeyu ryadkiv Vidnoshennya R displaystyle overset underset R leftrightarrow nbsp nazivayetsya kongruentnistyu Thue sho porodzhuyetsya z R displaystyle R nbsp U sistemi Thue tobto yaksho R displaystyle R nbsp iye simetrichnim perepisane vidnoshennya R displaystyle xrightarrow R nbsp zbigayetsya z kongruentnistyu Thue R displaystyle overset underset R leftrightarrow nbsp Ponyattya sistemi semi Thue po suti zbigayetsya z predstavlennyam monoyida Tak yak R displaystyle overset underset R leftrightarrow nbsp ce kongruentnist mi mozhemo viznachiti faktor monoyid M R S R displaystyle mathcal M R Sigma overset underset R leftrightarrow nbsp vilnogo monoyida S displaystyle Sigma nbsp za dopomogoyu kongruentnisti Thue zvichajnim chinom Yaksho monoyid M displaystyle mathcal M nbsp izomorfnij z M R displaystyle mathcal M R nbsp to sistema semi Thue S R displaystyle Sigma R nbsp nazivayetsya monoyidnim predstavlennyam M displaystyle mathcal M nbsp Mi vidrazu otrimuyemo deyaki duzhe korisni zv yazki z inshimi oblastyami algebri Napriklad alfavit a b z pravilami ab e ba e de e ce porozhnij ryadok ye predstavlennyam vilnoyi grupi na odnomu generatori Yaksho zamist cih pravil ye lishe ab e to mi otrimuyemo uyavlennya pro biciklichnij monoyid Takim chinom sistemi Thue ye prirodnoyu osnovoyu dlya virishennya problemi sliv dlya monoyidiv ta grup Po suti kozhen monoyid maye predstavlennya formi S R displaystyle Sigma R nbsp tobto vin zavzhdi mozhe buti predstavlen sistemoyu semi Thue mozhlivo nad neskinchennim alfavitom Problema sliv dlya sistemi semi Thue v cilomu nerozv yazna cej rezultat inodi nazivayut teoremoyu Post Markova 8 Sistemi rerajtingu termiv Redaguvati Sistema rerajtingu termiv TRS ce sistema rerajtingu de ob yektami ye termi abo virazi z vkladenimi pidvirazami Napriklad sistema pokazana u rozdili Logika vishe ye sistemoyu rerajtingu termiv Umovi v cij sistemi skladayutsya z binarnih operatoriv displaystyle vee nbsp i displaystyle wedge nbsp i universalnogo operatora displaystyle neg nbsp Takozh u pravilah ye zminni kozhna z yakih predstavlyaye bud yakij mozhlivij term hocha odna zminna zavzhdi predstavlyaye odin i toj zhe term v odnomu pravili Na vidminu vid ryadkovoyi sistemi rerajtingu ob yektami yakoyi ye ploski poslidovnosti simvoliv ob yekti na yakih pracyuye sistema perepisuvannya tobto termi utvoryuyut algebru termiv Term mozhna vizualizuvati yak derevo simvoliv nabir prijnyatih simvoliv fiksuyetsya danim pidpisom Sistemi rerajtinga slidiv Redaguvati Teoriya slidiv daye zmogu obgovoryuvati bagatoprocesornist formalnimi terminami napriklad cherez monoyid slidu ta monoyid istoriyi Rerajting mozhna vikonuvati i v sistemah slidiv Filosofiya RedaguvatiSistemi rerajtinga mozhut rozglyadatisya yak programi yaki vivodyat kincevi efekti zi spisku prichinno naslidkovih zv yazkiv Takim chinom sistemi rerajtinga mozhut rozglyadatis yak sistemi avtomatichnogo dovedennya prichinnosti Div takozh RedaguvatiKritichna para logika Algoritm zavershennya Knuth Bendix L sistemi vkazuyut na perezapis yakij vikonuyetsya paralelno Prozorist posilan v galuzi informatiki Regulovanij rerajting Rho calculusPodalshe chitannya RedaguvatiMarc Bezem Jan Willem Klop Roel de Vrijer Terese Term Rewriting Systems TeReSe Cambridge University Press 2003 ISBN 0 521 39115 6 Nachum Dershowitz and Jean Pierre Jouannaud Rewrite Systems Chapter 6 in Jan van Leeuwen Ed Handbook of Theoretical Computer Science Volume B Formal Models and Semantics Elsevier and MIT Press 1990 ISBN 0 444 88074 7 pp 243 320 Nachum Dershowitz and David Plaisted Rewriting Chapter 9 in John Alan Robinson and Andrei Voronkov Eds Handbook of Automated Reasoning Volume 1 Gerard Huet et Derek Oppen Equations and Rewrite Rules A Survey 1980 Stanford Verification Group Report N 15 Computer Science Department Report N STAN CS 80 785 Jan Willem Klop Term Rewriting Systems Chapter 1 in Samson Abramsky Dov M Gabbay and Tom Maibaum Eds Handbook of Logic in Computer Science Volume 2 Background Computational Structures David Plaisted Equational reasoning and term rewriting systems in Dov M Gabbay C J Hogger and John Alan Robinson Eds Handbook of Logic in Artificial Intelligence and Logic Programming Volume 1 Jurgen Avenhaus and Klaus Madlener Term rewriting and equational reasoning In Ranan B Banerji Ed Formal Techniques in Artificial Intelligence A Sourcebook Elsevier 1990 Rerajting ryadkivRonald V Book and Friedrich Otto String Rewriting Systems Springer 1993 Benjamin Benninghofen Susanne Kemmerich and Michael M Richter Systems of Reductions LNCS 277 Springer Verlag 1987 InshiMartin Davis Ron Sigal Elaine J Weyuker 1994 Computability Complexity and Languages Fundamentals of Theoretical Computer Science 2nd edition Academic Press ISBN 0 12 206382 1 Primitki Redaguvati Hsiang Jieh et al The term rewriting approach to automated theorem proving The Journal of Logic Programming 14 1 2 1992 71 99 Fruhwirth Thom Theory and practice of constraint handling rules The Journal of Logic Programming 37 1 1998 95 138 Clavel Manuel et al Maude Specification and programming in rewriting logic Theoretical Computer Science 285 2 2002 187 243 Kim Marriott Peter J Stuckey 1998 Programming with Constraints An Introduction MIT Press s 436 ISBN 978 0 262 13341 8 a b Bezem et al p 7 Book and Otto p 10 Baader and Nipkow pp 8 9 Martin Davis et al 1994 p 178 nbsp Ce nezavershena stattya z logiki Vi mozhete dopomogti proyektu vipravivshi abo dopisavshi yiyi nbsp Ce nezavershena stattya z informatiki Vi mozhete dopomogti proyektu vipravivshi abo dopisavshi yiyi nbsp Ce nezavershena stattya z matematiki Vi mozhete dopomogti proyektu vipravivshi abo dopisavshi yiyi Cya stattya potrebuye dodatkovih posilan na dzherela dlya polipshennya yiyi perevirnosti Bud laska dopomozhit udoskonaliti cyu stattyu dodavshi posilannya na nadijni avtoritetni dzherela Zvernitsya na storinku obgovorennya za poyasnennyami ta dopomozhit vipraviti nedoliki Material bez dzherel mozhe buti piddano sumnivu ta vilucheno gruden 2017 Otrimano z https uk wikipedia org w index php title Rerajting matematika amp oldid 38208083