170802, object vs achievement
170802 object 1.end of chapter 2 1.1 change chapter number: delete title of 2.1, 2.2→2.1 1.2 change chapter title : chapter 2. 1.3 chapter 3.1 moves to chapter 2.1 1.4 chapter 2 is ended. (draft) 2.end of chapter 3 2.1 not yet, 3.1 is ended 2.2 0801, about 36.50kb, (except blank) 1.4, (with blank) 1.8. p.14 0802, 96kb, except blank 2.7, with blank 2,1. p.18.
2017. 8. 2.