CORPORVM RIGIDOIIVM. £oi 



Ex meris autem iflis principiis AtKilyticis minime 

 cemoi.lUari potell, afluiiu debere 

 ' cof. A b. cof. B « zr cof. A a. coL B Z> — cof. C c , 

 non vcro item 



cof A If. cof. B a =: cof. A a cof. B ^ -h cof C c ; 

 quicquid tameii fit fiipponamus priorem aequationem 

 lccom habcre. Tum vcro quoque eundem in mo- 

 diUTi oflendi pcteft , efle : 



cof.A c cof C «zi: cof A a cof C ^ — cof B i» et 



cof B c cof Cbzz cof B b cof Cc — cof. A a. 

 Porro obferuetur, praetcr illas aequationes §. 5. alla- 

 tas , etiam fequentes locum habere : 



VII. cof A«'-l-cof. A^'-f-cof.A/~i , 



VIII. cof Bfl'-4-cof BZ^^-l-cof Bf'z=i , 



IX. coC Cfl'-|-cof C^'-+-cof Cf'=^ I , 



X. cof A^cof B<2-i-cof A^ cof B/^-1-cof A^cof.BiT — o-, 



XI. cof Btf.cof Ctf-r-cof.BZ>.cof C^-i-cof Btfcof C^~ o , 



XII. cof Atf.cof C^H-cof A^. cof C^-i-cof Ai"cof C^ — o. 

 Nunc pcr aequationcm X colligimus r 



cof A//'. cof B Z;*-j-cof A t'cof B <;""-l-2Cof A -5.cof B fcof B 3.cof A c 

 — cof A«\of. Ba*— (i— cof A i^"— cof Af'Xi— cofB/b'— cofBf') 



pcr aequat» VII et VII L Hinc fadi euolutione 

 prodit : 



2 cof A h. cof B c-cof B ^ cof A f — 1 — cof A ^'— cof A c* 

 -cofB/-cofBf'.+cof AZ7'cofrE/"+cofB'^".cofA<r'r:cofAi2* 

 H-cofB^'- I -i-cof A h\ cof. Bt-'-|-cof BZ^^cof A<r' 

 — co(. A Z''. cof B c'-\- cof B //cof A c"'- cof C a, 



K k 3 per 



