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# Title: Leibniz-Handschriften zur Mathematik LH 35, 8, 27
# Folio 1r, page id 00068121:0001
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set
Demonstrario ummae d
guliscimetici
serierum recipioce
seu
Trianguli Haeriiicie
A AB. h+ 2F. B+ p= e
DH 1. + 3 + 5 +   et
Cs ++ = + +
10 15
+  ex
epen   a
Ert
A -1 1) + = +  + + L eu
1
4
BH + L + L+1 + L er
jam per rheorema
A- 1+ = B1 1+ L+L +1 erc
Ergo
13
A-1+ = B aA.
Ergo B  2. Adeoque habe
tur totius serici B. summa
Eodem modo
B - 1 + 2C p B. Ergo Cp 3.
C- 1 + 3D AC. ErgoDp =
at
Et ita porro in infi,
nitum.
Ergo ut in unum
contrahamus:
D erc
n n
2a
1
3
erc
c ete eu et
sit
conjectumlia certa
etc
verte: