VMs: Moder number (but NOT medievals!)

["Francisco A. Violat Bordonau" <violat@xxxxxxxxxx>]

Hi all!

I was study the numbers, callygrapy and forms of numbers in some Spanish
Medieval Manuscripts (?Tablas Alfonsies? y ?Libros del Saber de
Astronomia? -circa 1270-, the ?Atlas Catalan? -1375- and others Spanish
Medieval documents and books from circa 1250 to c. 1550) and I have a
hypothesis about this number 67 and your author...

In my opinion the number 67 was write after or later years 1490-1495,
because in some manuscripts and books from the period 1500-1525 (like
?Summa? from fray Luca Pacioli, second edition, Brescia, 1523),  the
number ?seven? is really a modern number ?seven? like we can see now (7)
and we know... but the number ?seven? in Medieval manuscripts (from 1270
to c. 1490) was write equal to a back ?v?, like a ?^? or ?tip arrow?.

The number ?seven? in the number ?67? is (in my modest opinion) a
?modern? number seven, not a medieval number... Then, the numeration is
modern (s. XVI) or the author was write in the XVI century...

In the ?Tablas Alfonsies?, a book from the king Alfonso X (c. 1270) the
number 4 (four) is equal to voynichese letter ?l? (like a greek letter
?rho?), the number 5 (five) is equal to ?4? (the number four) and the
number 7 (seven) is equal to a ?^?. Then, the number 56 is writed like
?46? in this manuscript, the number 67 is ?6^? and the number 77 is
?^^?. Finally the number 49 is writed equal to voynichese word ?ly?.
This ?medieval numbers? (really arabic numbers, from the India) was
introduced in Europa for Leonardo Pisano (Fibonacci) in your book ?Liber
Abaci? (1202). This medieval numbers died nearly the discovery of
America...

 I can send for e-mail some digital photos from this documents (Tablas
Alfonsinas, Atlas Catalan, Libros del Saber, Liber Abaci and Summa.)


A greeting from Spain.

Francisco Violat Bordonau
Caceres Astronomical Observatory
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