       ָ:   Ychdimsy          

: ıߴעʽ,

λ:  1.  ʽܱ       Yע  ->    ->  ʽ
       2.                Y_ʽ  ->  ıעʽ
                          
 :
 1 趨עʽ

 2 ץȡʽ-- ѡȡ ,ȫ  (ڶѡȡ)  
    ѡȡ--ͬߴעʽ,(1)עʽƸı.
    Բͬעʽ.

    ȫ--ȫͼͬߴעʽ(1)ı,ͬߴעʽ򲻻.

     ԲͬߴעʽƲ ѡȡظִȫ,趨עʽ.

 3 ָ,,,ע,ɫɸ
                             
ָ:  sdimsy   һȫµıעʽ
λ: 1.  ʽܱ      Yע  ->  ʽ
      2.           Y_ʽ -> עʽ