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# Title: [Idea Totius Encyclopaediae Mathematico-Philosoph. hoc est, Analysis Aristotelico-Euclidea] Erhardi Weigelii, Prof. Publ. Idea Totius Encyclopædiæ Mathematico-Philosoph. hoc est, Analysis Aristotelico-Euclidea (shelfmark Leibn. Marg. 106)
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De Postulatis.
Sect. 25
5. 4. Caeterum Postulara (ux de sis prius dicamns, con-
es guiaca siderari porune proncadhiberi debenerel ad ipsas demon-
Arationes, dicuneurque demonstrativa: vel ad operationes
externas instituendas, e dicuntur operativa. TIla demon-
Arationisrera sunc principia quasi pocentialia; haec princi-
Piorum dCMONSrAFIrOTRI NOMEN nEqUAqUaI MEFENEUES
nec etiam quicquam ad demonstrationem qua calem
DExstanE.
)Demon. 55. Postulara demonstrarivanihil aliud sune, quam effata
Aratiba e per se nota quibus aliquid fieri posse arque ita saltem nominaliter es
bera qua
sum
se llicet quoad rem (xepius etiam actu sic) postulatur concedis
quippe cum hoc nulla demonstratione indicear, Sunc autem Po-
Aulaca rel concessira vel insimul posicira. Prioris generis
Pottulacum estmecaphysicum illud: quodlibet possibile in esse
Vel conccs. Poni, quo Aristoteles in demonstrando Expius ucitur: de
sba
Sphaericum quodlibet punctum circuli mobilis sistere inperiphe-
ria sui Circulipositionis: _c. Hlaec a similia liceenon semper
acu sinE a ParEerei, quiacamen nacura ica comparaca lunt,
ut ese Possine, imo (xepius aut plerumque rel certo tempore
rerera existans, isitur abstractione facta, Palrem nominalirer
esererissine concedipossunr in Scieneiis, abinon de eRere-
cum parcicipiali h. c. aanali, Peu de ipsa existencia, sed (al
cem de nominali a concessiro, incerimrealis scu de nuda eF
seneia Termo est, unde calium Fneium habiendo necessaria,
quam habent a parte rei, ad habicudinem Fsaci demonstra-
ciri inde dependeneis ostendendam adhiberi omnino pon
cest. Cujus quidem habieudinis rei postulatae neceNario
competencis (non ipsius existentia) respectuad Fsaci inde
Auencis demonstrationem unice admircuntur, imo requirum
cur, PoAutata.
5. 6. Ditterune aurem haec Poctulara aB Hy pothesibus;
ypothesibus Quod Aypotheles alcerum ERaci demonstratiri terminum
disserentia. concessire ponancesse, sire de se rerus sicsre Faltus, Sirepol.
sibilissireimpossibilis; Poctulaca rero postulanc id quod
extraterminos EHacicadic, quoniam possibile est, concedi,
P. Dostalata
duorum ab