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Translated by Nobuya Nakamura
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Nobuya Nakamura
Chairman of Nagano prefecture WASAN society
3612-12 ko Komoro city Nagano pref. Japan
! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! preface !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! preface "
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I translated it into English while noting the following.
a Because the diameter was always used in WASAN, I proved by using
not the radius but the diameter.
b It explained a little in detail because there were a lot of problems that
the contact relation was not clearly written in WASAN.
c I proved that even the junior high school student ar the high school
student understood as easily as possible.
d The problem that proof was difficult and has already been proven
decided to quote it.
When you are dissatisfied about my proof, there is eRSTUfg h
ijkWlmnopYin Japan Academy though I have not looked yet, and
refer to it, please.
WASAN is one of the Japanese cultures in Edo period. In my mind, there
is a wish that wants to introduce the culture to people in the world.
If this book becomes a help when the researcher solves the problem, I am
very glad, too.
April 30, 2010
! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! contents !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! contents "
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P.13 P.14 P.15
P.9 P.10 P.11
P.8 P.8 P.9
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P.41 P.43 P.44
P.37 P.38 P.40
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