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# Title: Leibniz-Handschriften zur Philosophie LH 4, 7B, 2
# Folio 10r, page id 00068646:0019
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Specimen Calculi universalis.
Propositio  universalis affirma
tiva; hoc loco a nobis sic exprimetur:
a est
sive
Comnis) homo est animal.
itaque semper intelligemus praefixum signum
universale..
Propositiones negativas,
et particulares et hypotheticas nunc non attingemus
2 Propositio per se notue vera
al
sive
ducts Ronto Kathontal
1
(Omac) animal rationale est animat.
ab est
sive
b
omne sanimal rationale est rationale
Sive omitendo b)
a est
sive
a
Omne) animul est animal.
Consequentia per se tuvera
si a est b, et b est C, Ergo a est C
Sive
Sisem fonoest aiml, C nim l es sissanta Ergo Ommis homo est sabstonti
(4) Hinc sequitur:
si a et bd et b est C, Ergo a est c.
COum) homo est animul rationale. (Chanc) animal est substantia
Ergo (omnis homo est substantia
Hoc ita demonstratur:
Si a est bd, Erx ex hypothesi; et bd est b
per num. 2. Ergo a est b per  num. 3.
Rursus si a est b (ut probavimus) et b est C
ex hypothesi,, Ergo a est C pes num. 3.
5 Propositio vera est, qua vel
parctra vl ex pen se vearis
ape consequentiaeum per seveharum
et de finitionum oritur uulet per se
vecis deductarum vritur
a
pt e 
 quae ex positis et per se veris per
consequentias oritur.
Nota: et si propositiones quaedam pro hominum
arbitrio assumantur, ut definitiones terminorum,
inde tamen oritur veritas minime arbitraria,
satem cum absenite rerum ex potieo istus desuntionibus
d s0
Ut calculi hujus natura intelligatur, notandum
est quicquid a nobis  enuntiatur
in quibusdam liferis id
posse etiam d a nobis pro arbitrio
assumtis enuntia r etiam in
quibusvis aliis litexis posse, vel ideo
quia
nihil referre
Notar heste, sire dils
ab sivel cditas cba. exmlieasa
hacoest Animale ntonate, sibechemo
Ht natiruala uemal