4 For a division to be clear it is necessary (1) that the members resulting from the division be indicated and thus be shown to be contained in what is divided, (2) that the mutually exclusive character of the parts be manifest, and (3) that the classific
4 For a division to be clear it is necessary (1) that the members resulting from the division be indicated and thus be shown to be contained in what is divided, (2) that the mutually exclusive character of the parts be manifest, and (3) that the classific
4若要划分清晰明了，就必需：（1）由划分而产生的所有分类必须被标示，以表明其包含在被分类的事物中；(2)由划分而产生的各部分不能交叉；(3)分类必须囊括所有需要分类的事物。