Cavalieri, Buonaventura
,
Geometria indivisibilibvs continvorvm : noua quadam ratione promota
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GEOMETRIE
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laru n in vnaquaq; </
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">ΣΤ, integræ omnes, ſicut
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contingere ſuppoſuimus in fruſtis, QΦR, 7R Ω6, ergo cum, QΦR,
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Lem.</
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5Δ&</
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">, ſint figuræ etiam æqualiter analogæ, inter ſe æquales erunt:
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<
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">Eadem ratione patebit fruſtum, 7RΩ6, æquari figuræ, S&</
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<
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go fruſta, QΦR, 7RΩ6, ſimul ſumpta æquabuntur figuræ, Τ5βΔΣ,
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ſed & </
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<
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">figuram, 76D, ipſi, EST, adæquari, necnon, ΦΚΩ, ipſi, ΔL
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">Ex antec.
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Lem.</
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Σ, pariter adęquari manifeſtum eſt, cum ſint figuræ æqualiter ana-
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logæ, & </
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">portiones parallelarum ipſi, GM, in eiſdem conceptarũ
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integræ ſint, ergo tota figura, DQK, toti, ΕβL, æqualis erit. </
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ſimili modo in figura, BHIC, ducentes rectas lineas ipſi, GM, pa-
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rallelas, nempè, O2, P3, quibusipſa diſtinguatur in fruſta, capien-
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tia dictas parallelarum portiones integras ſcilicet in fruſta, BON,
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CN2, PH4, 4I3, OP32, PH4, 4I3, eaſdem, O2, P3, producentes
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vt ſecent ambitum figuræ, EYL, velutin, T, X, ℟Υ, deſcriptiſq;
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<
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">lineis, EV, ZL, vt fuit deſcripta, 5Γ&</
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<
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">, vt conſtituatur figura@, ET
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Lem.</
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V, æqualiter analoga fruſto, CN2, (ex quo remanet, EVX, æqua-
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liter analoga ipſi, BON,) & </
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">figura, Ζ℟L, ęqualiter analoga ipſi,
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4I3. </
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">(ex quo, ZLY, remanet etiam æqualiter analoga ipſi, PH4,)
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cum in his captę parallelarum dictæ portiones integræ ſint, mani-
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feſtum erit fig. </
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<
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">ETV, æquari ipſi, CN2, EVX, ipſi, BON, Ζ℟L,
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ipſi, 4I3, ZLY, ipſi, PH4, & </
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<
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">tandem, ΧΤ℟Υ, ipſi, OP32, ex quo
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concludemus figuram, BHIC, æquari ipſi, EYL, hoc eſt ipſi, ΕβL,
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ſed eidem,, ΕβL, oſtenſa eſt æqualis etiam, DQK, ergo figuræ, B
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HIC, DQK, inter ſe æquales erunt, igitur quæcumq; </
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ræ æqualiter analogæ inter ſe æquales erunt, quod oſtendendum
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erat. </
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eſſe manifeſtum eſt.</
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