(Note that A' is also the insimilicenter of the circles having as diameters segments CA and AB; and cyclically for B' and C'.)
」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」＜第２章　物質の構成粒子＞（教p19-）