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# Title: Erhardi Weigelii Sacrae Caesar. Maiest. ut & Com. Pal. Sultzb. Consiliarii, Supr. Artium Archit. Directoris Saxo Ien. Mathemat. PP. totius Academiae Senioris, Philosophia Mathematica (shelfmarks Leibn. Marg. 65; ZEN Leibn. Marg. 65)
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16X
ian
PNODETAEx BICTAMMINUS
Vel (F) Amtnor terminus praecedic, primum
Ruberahie a mecio, retiduum adde certio; habe.
bis quarcum. Oct dentur a. b. c. cunc b - a)
c-d. (2) Simajor pracedic, meclium aprimo
Suberatre, retctuumque subitahe a certio, habebis
quircum: nC (an b).5 - d. 1 105
e
CON- DIETAMEN
SAPIENTIA DIVINE.
Si terminorum quaternorum
duo medii summam taciunt, qua
lummae extremorum est aequalis;
arithmeticeproportionales lunt.
p
PRODuCruMXIV.
Rithmetice proportionales cermini guater.
LEni, alternarim Cumtis a inverlo ordinc, pro-
porcionales sunt.
hisce modis enim bini medii manent iidem.
DE a. b c. d.
alcernatim
inverse
60C: b.d. d. c: b. 40
PRODuCTUM XV.
qualium cocorum binorum inequaliterle:
LLctorum bina partes inter le reciproce pro-
porcionales Tunt.  F. 9. E b. + 2 artd. etiam
reciprocesi a: d. b. Namhoccatu binime,
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