fOUMA BINARIA DEL SEST*ORDINE 3^5 



= (a bY ajbj a, b, - ^^^ {f, f'f {xy)\ 



if, /•?„ = {abY aj b;- 1 if, f'Y,, {xy) - |j {U'YyixyY- \ ifJ'Yi^yY; 



{f, f'Yy = {aby-ar' bJb,-\ {f, /•') {xy) , 



(/; f'Y,^ = iahYnJbJb;--{fJ-)\{xy)-^^ {f.f'YixyY 



= {abYoJbJa^b^ + ^^{f\f'Y{xyY, 

 if, f'Y,^ = (« ^Y ('.' K h; - l (/•, f'Y,, {xy)-^^ if, f% {xyY 



-\{f,fY{xyY=..., 



if, ffy. ={abYa.V-2{fj%,{xy)-^^ {f/'YA^yY- B if^f'Yyi^yY 



-l{fJ'Y{xyY = ...; 



( /-, /"') , = {ab) ajb,' b,-^^{f, f'Y {xy) , 



{f\f%, = {ab)a,njb,'- {fJ'Yy{xy)-T%'<f^fY{^yY, 



(/■, f% = {ab) aj bj^ b/ - 1 (/-, fry^ {xy)-l{f,fYy{xyY 



-±{f,fY{xyY = '"^ 



{f, f% = {ah)aJbJ>,'-2 (/•, fYy^{xy)- \ {f, H^xy)'- ? {W'Yyi^yY 



-\if,fY{^yY=-'^ 



(/•. f')y. = (ab) a,' b; - 1 (A /•')'-,. {xy) - f {f, f%. {xyY 



- 1 (^' ^')V (^y)'- ? {mM^yY-iif^f'Yi^yY = - ; 

 {ff')y =aJb^'h-Uf^f'){xy), 

 { ff%^ = cij b,%^-{f, f% {xy) - 1^ {fj'Y {xyY=- ' 

 ( /•/•'),3 - aj bjb;- 1 (/•, /•'),. {xy)- i^ (A nv^yY-Uf^ f'Y {xyY. 



