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The Dozenal Society of America
The DSA is a voluntary, nonprofit education corporation, organized for the conduct of research and education of the public in the use of dozenal (also called duodecimal or base-twelve) in calculations, mathematics, weights and measures, and other branches of pure and applied science.

Filosofia de la numeracion

Title: Filosofia de la numeracion
Author: D. Vicente Pujals de la Bastida
Year: 1098
Subject: La superioridad de la doce como un base de la numeracion.
http://www.dozenal.org/../sites_bck/default/files/pujals_de_la_bastida_filosofia_de_la_numeracion_0.pdf

Un libro en español sobre la superioridad de la doce como un base de la numeración.
© 11E9-1205 (decimal 2013-2021). The Dozenal Society of America. Contact Us
Creative Commons License
This website and the documents on it are licensed under a Creative Commons Attribution 3.0 Unported License.
Numeration on this site is in dozenal (also called duodecimal, or base twelve), using "X" for ten and "E" for eleven.
0 1 2 3 4 5 6 7 8 9 X E 10 11 12 13 14 15 16 17 18 19 1X 1E 20 21 22...
PDF documents may use a Dwiggins stylized "X" and "E" or the Pitman inverted "2" and "3".
The Humphrey point, or semicolon, is used for fractional parts; e.g., "0;6 = 0.5."