44-4. OE TRANSLATIONE 



F— cof. Ao; G ncoCB^; H —cof.Ca 

 ^'—coiAbi G':=:col.IU; H'-co(. C^ 

 F^'zzcor.Ar; G":i:co(.B<;; H^r.cofCr. 



Quamuis autem ex ipfa DiflTeriaiifine m >do allata 

 haec identitas non perkdie innotefcat , ii^fri occafio 

 d;ibitur ortendendi , qund illa omnino iocum h:ibeat. 

 Intcnm obferuare iuu;U, rchniniies illas pro licteris 

 F, G, H etc. ab llluflr, Eukro allatas in §. 1 8. 

 D (Tcrtationis fuae , omnino locum habtre , fi his 

 littcris valores mox adignati tribuantur. Eft cnim 



I. cof A a -i- cof B a -h cof.C a — i 



II. cof A ^'-4-cof B 6'-|-cof.C^'= 1 



III. co(. A c'h- cof B c -\- cof C f ' n I , 

 tumque per Lemma noftruai l : 



IV. cofAacof Ai>+cof B^cofB^ + cof CizcofC^^ofai— o 



V. cof A a cof A f + cof B <2 cof B f + col. C a cof C f ~ cof ac — <^ 



VI. cof.A^cof Af +cof B^cof Bt + cofC^cof.C(r — colJ^f-o. 



6 Qiiod fi iam demonrtrnri queat , in omni 

 conuerfione fphaerae circa centruiii fuum fixum, ex 

 prcflionem illam 



(i-cof.A^)(i-cof.B^)(i-cofCt)+cofE<rcofC^^i-cofAfl) 

 -4-cof Af cofC^(i— cnfB^)-f cof A^col B^/(i— cofCf) 

 — cof A b co(. B f col. C <z — cof A cciA. C b co(. B a 



ad nihilum rcdigi ; patcbit omnino exiflcrc in cius 

 fuperficie aliquod pundlum 2, quod pof\ cnnucrdo- 

 nem in eodcm fit loco , ac in (fatu initiali rcperie- 

 batur. Vcrum antequam hanc dcmonflrationem iuf- 



cipia- 



