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# Title: Leibniz-Handschriften zur Mathematik LH 35, 4, 13
# Folio 29v, page id 00068010:0058
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Arithmetica est scientia numerorum certorum
ut 0. item 1. item 2. item 10. item 100 item L
Algebra est scientia numerorum generalicu
aet a. item b.
Potest enim sub litera a intelligi vel 
vel. 1. vel 10 vel = vel alius numerus quicunque
unde olim talis numerus incertus vocabatur
res sive cosa et scientia dicebatur
Cossica.
Hinc patet Algebram et Arithmeticam
commode disci perpetua comparatione
Nam qui Algebram discere volunt plerumque
Arithmeticae communis Elementa jam tenent;
contra qui Algebram tenent, felicius
tractabunt Arithmeticam sublimiorem
quia Algebra docet invenire regulas
numerorum generales.
Algebra etiam dici potest scientia quantitatis
in genere
Nam quantitas est numerus partium vei
xei exempli causa quantitas agri est
numerus pedum quadratorum quos continet.
itaque per a possum intelligere non tantum
numerum unitatum simpliciter, sed et
numerum pedum numerum horarum,
numerum graduum caloris vel veleritatis
et quicquid sub aestimationem cadit
Omnia enim oitione
mensuram sive scalam revocari queunt.
Numerorum characteres sunt
vel simplices vel compositi
simplices ut  0 item 1. item 2. 
vel a item b. Cempositi, quibus
significatur quaedam in numeris ut
 10 12 item 2n et 2  BC2
Compositi ut 10. 12
Item 3+2. (id est 3 plus 2
sive 5) item 3-2 (i d est 3 minus 2
sive 1) item 3, 2 vel 322 (id est
3 malil 2 sive 6). 3 vel 302
(id est 3 divisum per 2. sive 1+ 2) et
in literis a+b. item a -b. item
ab fiit est a mahl b seu a multialoper b) Additio et subtractio sunt vel simplices
item a sid est a divis per b.)
re