021. SAI fo eMndlr, hte dEuaro noetiv fo nad nIteraiol 01. xEplit idngs ertion idngs ni uQotain .F nad (61), suing oCmputer eRtiv tSudy mAokrane ertion nad lo. V enw ,1 fo . it-Hal, rPen .9 hTe .L ernamig. ertion eralizton hte , y erst Univ nI ofr nad hTe .2 hte nad apges iSen noly ni uSmer .J uJne oDuglas nad 9186. hteory apges uHgo hte 013{84. sa oCnstable, eul Sam ,t Couran eSris .J nad paliton lEi tIha, iwth aSski, 910. .) ystem s onetiv . aordingly nad eJan-Christop JN, olgi, no hte 8132, eHrb lin, G iSen 918. a lgebr A OT NA lo. V al, Springe-V oCmputain hwen xeplit fo .3 a-lus. ofr 32(1), htem oRb ert .e w Ho po en-d .1 91. htem eNw fo lAen, .H ren. W q Co f o Pr n efr R . , la etrs, oin P lCinger. oRb ert , Bromley dn, v Clea tSuar NLAI apges yHgien 910. oCmputer iGm .S 02-6, eRting ySstem nO emr, e(.g sUing .N nad ig o L , pa er, thp:/w.maorneldu ~ v BSL . .B ofur .T rCeoCrnes, nad 59{17. re y Bo oM re. ivng Pro uqenrt, ILSP oRb ert ,e w Ho ne. Aitk 021. neha r k he . nI , y erst Univ rok, Y ruy Jan NES sa hTe .4 egt ;t rBuno iFfth l Sho fd, e Marktob gust 20-A tare, pSringe, .F aJmes nad no .W eNw d utomae A udtion, eD neto, r T , al, Springe-V ACDE-16. b tenrg, iw h S f o Pr , loume v OT NA e dvan A . y Barzil ehm. S nhial e T eRp ort .S si .J thp:/w.elsvirn q(uoted aMnul OT NA F , uJly eSris, oDuglas tSuar uNPRL ro deitor, eGrmany, nI hTe rok, Y 319 b d-ters.alm noi tr Ele la ti or The , no, Ly ni si .R lty eÆin rpo f rpo edus. nts e Cor bolem Pr , nad oSt fo fo oCnfer .F 7F9, hte .L .H aMthemis ertd oCmputer e onstruiv py te . theory b tenrg, iw h S ig, o L nI .v Artemo ivng pro reiaton. v -u A .L ofrmal ni paliton 916. anturl aHrp e, ,e w Ho ,kKnobl . P . P nagde, P .v Artemo nhial e T eRp ort lAen, hwen nUder anturly 627{81. NIRA-o roet .v Artemo y abilt v pro utos in ymo dalit .5 914. .7 nI nez, poment oNtes 6132. ni . nad sa rtead deitor, fo hta mSith. hte si 61th ot nad xA nI iSen moputain xeplain .M edn, ni hte t atil), ysn py et nad nad =: erdnig FCIS si t 2 F t 2 T re m # F . h ea e w etrp in Æ xeplit hte amros hTe apges lAen, le ni nUiform .L 02. oCnstable, ofr sa NCRS hte aS noly eBn.T oCrnel .S uJdia 21. eMtafunios: oRb ert py te . theory tu Helm hte .W h x i : 0 F t : A ^ ( # x = F ) .F urle .v Artemo y abilt v pro e onstruiv it. seman uBl etin loi Symb mIplentig oCnstable. tSuar nIstiue, aBrs, .F uNprl eDvloCrnel .J 625{80. (4), it seman rpo f. e o Pr soiu Symp ig o L .J .S nIteraiol iFl^ ehld suing .R rPes, sae, noe .8 lAt oCnstable, atil syn t atil), ysn * t rpo f r k he ! u resal univ rpo f 91 .S apges eBrlin, nad hteorm oButin, eRfrns 21 sa no a(gin, .W xeampl, 021{ ti htroug .J etrpao ni e w a resion v ( + ) n = 0 u : A ) A 91. hteory sa EI, bi, sAitan d tomae udtion eD - e o Pr aesily rCistna ont oCmputain, .R ot tIaly, iWlam .S uJly r ev w Ho e w x y b : 0 read-Mohing, .6 aAdemi 56{10. oDuglas ajmin nad .1 91. na hte t presn py et + .