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In libros Aristotelis de caelo paraphrasis hebraice et latine

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168 THEMISTII DE CAELO T'2 [Aiist. |.. 3nibl_]2]prorsus existit, tam<strong>et</strong>si qui ponit aliquicl <strong>de</strong>orsum uioveii, quod f. 46^grave non est, huic dicto sane non asseutitiir. <strong>et</strong> assumit <strong>et</strong>iamabsurdum ac disseutaneum esse, quod sine poii<strong>de</strong>re <strong>et</strong> quod graveest, aequale spatium eo<strong>de</strong>rn tempore <strong>de</strong>currere, tam<strong>et</strong>si huic ctiam5 assertioni nou assentitur, qui ponit moveri aliquid <strong>de</strong>orsum, quodgrave nou sit. ea<strong>de</strong>m sententia convenit, ut <strong>de</strong> levitate<strong>et</strong>iam dicatur. <strong>et</strong>enim in hoc tantum differuut, siqui<strong>de</strong>m convenit,ut (/«>) motus ponatur nonnisi sursum institui; reliquos autemsermones ea<strong>de</strong>m proportione <strong>de</strong> hac <strong>et</strong>iam dici convenit.10 Cum autem in hoc sermone explicuiss<strong>et</strong> tieri non ])osse, utaliquid cieatur, quatenus non inclinat, hoc ex eo <strong>de</strong>claravit, quodiis in rebus <strong>de</strong>iirehenditur, cpiae natura moveutur. czim vero nonraodo motus natura inveniantur, sed <strong>et</strong>iam vi, i<strong>de</strong>m <strong>de</strong> hoc <strong>et</strong>iammotu explicat: nempe si, c[uod sine pon<strong>de</strong>re est, vi mover<strong>et</strong>ur, ex15 hoc omnino effici, ut [infinitum si)atium conficiat. fieri igitur nonpotest, ut vi moveatur, quatenus inclinationem non hab<strong>et</strong>. perspicuumest autem, si aliquid vi mover<strong>et</strong>ur, quatenus inclinationemnon hab<strong>et</strong>,] tempore finito immensum spatium <strong>de</strong>currere. idcjue per<strong>de</strong>ductionem ad i77ipossibile ita <strong>de</strong>monstratur. si fieri jiotest, ut20 corpus cieatur, quod grave non sit, A littera <strong>de</strong>scri[)tum per 6'Espatium tempore finito: ab ea<strong>de</strong>m potentia eo<strong>de</strong>m tempore corpusgrave movebitur B littera notatum per minus spatium quam id sit,nempe cui CD affixum est; si enim ambo haec corpora vi ciebuutur,quod sine pon<strong>de</strong>re est, longius vi quam id, quod grave vel minus25 grave est, movebitur. atque si posuerimus, tit spatium {CD sehab<strong>et</strong> ad spatimn CE^ ita <strong>et</strong>) B ipsum ad suam aliquam partem .sehabere: igitur quoniam eiusmodi pars longius vi quam totum ipsumfer<strong>et</strong>ur, convenit, ut velociori motu praedita sit. ea<strong>de</strong>m enim eritproportio velocitatis eius ad velocitatem totius <strong>et</strong> magnitudinis30 inter se, qualis est proportio, quae in duobus spatiis iuest <strong>et</strong>qualera haec duo spatia, quibus Q>E <strong>et</strong> CZ) affixa sunt, habentinter se. igitur qualis est proportio, quam duo spatia habent interse, vi<strong>de</strong>lic<strong>et</strong> GE <strong>et</strong> CD, talis <strong>et</strong>iam erit velocitas partis corporisB <strong>et</strong> velocitas ipsius corporis B, nempe tempore, quo pars corporis35 B spatium CE confici<strong>et</strong> ac peragrabit, {eo<strong>de</strong>m tempore ipsum corpusB spatium CD secabit.) sed tempore, quo intersecabit ipjsuniB spatiumCD, posuit corpus sine pon<strong>de</strong>re A spatium CE conficere ac intersecare.12 cum vero <strong>et</strong> inveniantur emendavi: inquit . . inveniuntur codd. Al 15 ut infinitum—hah<strong>et</strong> (18) om. codd. (fort, iure) 25 CD—<strong>et</strong> (26) supplevi: Al male supplevitipsius corporis B se hab<strong>et</strong> ad aliquam sui partem 35 eo<strong>de</strong>m— secabit supplevi;contra codd. Al legunt post ac intersecare: siqui<strong>de</strong>m eo<strong>de</strong>m tempore corpus A, quodcar<strong>et</strong> pon<strong>de</strong>re, i<strong>de</strong>m C spatium secabit.

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